Hiking and backpacking in IsraelIsrael is a very convenient country for hiking in the wild, thanks to its mild weather, relatively unthreatening wilderness, the proximity of natural sites to cities, and not least – its extensive marked-trails system. However, many complications could occur – both natural and legal ones – that people travelling from abroad should familiarize themselves with, before hitting the trails.
The main considerations for planning your trip are summarized in the following checklist. Consult the list of destinations to choose where you want to go and understand how you should prepare yourself. Read also the safety issues below.
Note, backpacking in this article refers to wilderness backpacking and does not cover backpacking in the sense of inexpensive travel on a shoestring.
ChecklistIf you're inexperienced in wilderness hiking in Israel, it's very advisable to consult local guides. See the section about travel consulting and information, below. In any case, the most important points to check out while you plan your trip are:
- Consider acquiring a map for your trip, and/or consult tour guides and tourist information centers.
- Plan your path, considering:
- Marked trails – obligatory in nature reserves, recommended elsewhere
- Nature reserve regulations
- Army firing zones – make sure there aren't any in your path, or that entry is allowed on the day of your trip
- Minefields – make sure you aren't accidentally planning to cross any, and specifically in the Golan Heights – use only marked trails
- Hostile areas
- Flash flood warnings – probably the cause of more deaths than any other wilderness hazard in Israel
- Review the various other considerations
Travel mapsAll hikers in Israel should carry a hiking map issued by the Society for the Protection of Nature in Israel. They are topographic maps on a 1:50,000 scale and contain marked trails and road information. They are available only in Hebrew; however, most information is presented visually, so they're still very useful even for non-Hebrew speakers. They can be bought here from the government-operated Survey of Israel, or in bookstores and outdoors stores in Israel.
On the back of these maps are all sorts of useful diagrams, explanations and suggested itineraries, though most of these would only be relevant for Hebrew readers.
A similar map, with higher resolution but less comprehensive data, is available online at Israel Hiking Map. Do not count on having cellular access in remote areas (particularly valleys), so you might want to download the map ahead of time for offline use (instructions). In any case, your phone battery might run out, so do not rely on this to the exclusion of paper maps.
Wherever a marked-trail starts-off from a road, a roadsign is placed indicating the name of the trail or its destination, along with the trail color. Also, when several trails intersect there would sometimes be signs indicating which trail goes where. However, this isn't always the case so travellers are advised to carry maps with them. Many nature reserves have brochures that contain a schematic trail map of the area and also of the main attractions. Also, try to find the Wikivoyage page for your trail as it might also contain a trail map.
As mentioned above, in Israeli nature reserves hiking is allowed only on marked trails, and leaving these could incur a fine. Marked trails can also be found outside reserves, where they are not obligatory but they usually mark the most convenient, fun and/or interesting path. A Hebrew proverb says that "the trail is wiser than the one who walks it" (חכם השביל מן ההולך בו): the trail has been made by many people who walked it in the past, meaning that it is the best way across the area.
In addition to the standard trails, several long trails exist that cross a large area and usually connect between several "regular" trails:
Israel National TrailThe most famous trail, which goes through the entire length of Israel from north to south (or the other way around), passing through many famous sites and areas such as Jerusalem, Tel Aviv, the Sea of Galilee and Makhtesh Ramon in about 1,000 km of a vast multitude of landscapes, with forests, coastal plains, prairies and deserts.
Golani TrailA relatively new trail, 1,200 km long, passing all over Israel, with visits to many of the memorials and fighting areas of the Golani brigade.
The Jesus TrailConnects prominent sites mentioned in the New Testament.
Valley of the Springs TrailA 145-km trail in northern Israel, near Beit She'an and Mount Gilboa.
WeatherIsrael is hot in summer and cold in winter, though not extremely so in either. It's strongly advised to check the forecast at the
During winter, as well as spring and fall, there are rains every now and then. During September there are usually only some dribbles, November to February could have a few storms, and rains still occasionally fall through April or May. Even in mid-season, rains are mostly very bearable and no storm-suits are required, but the occasional storm could take place and soak you to the bone. Rains mostly come in a streak of 2-4 days, then to die out and be followed by a few dry – sometimes warm – days; longer-lasting storms are pretty rare. When it's not raining, temperatures could be cold enough to warrant a coat or jacket, but if you walk intensively there's a good chance you'll find these overheating. In that case, it's advisable to dress in layers, so you can put on your coat while resting and strip down to short clothes during the walk. When it does rain (or when hiking just after rain), it's best to either use waterproof clothing and shoes, or to wear pants that aren't very long, as these are likely to drag in the mud and water. Hail in Israel is rare and would only fall during storms. Snow rarely falls in most of Israel, but it does fall on Mount Hermon a few times each year, and sometimes also in Jerusalem, Mitzpe Ramon and the high peaks of the Golan Heights and Upper Galilee. The forecast will always be able to provide prior warning for these occurrences, and even then it's not unlikely to be a false alarm.
Flash floods are probably the greatest wilderness danger in Israel and should never be underestimated. Carefully read the safety instructions regarding those.
During summer, days are hot and dry. Rains almost never fall between June and August. Humidity is usually still very high except in the Negev, making the heat really unbearable. When hiking in the Israeli summer, it's very advisable to plan your trip to include siestas during the peak heat hours. These are usually 13:00-16:00, but could vary in different regions as cool winds are common in different times of day. Small bodies of water such as springs and reservoirs (for bathing, not drinking) are common in Israel and should be included in your plan. However, they're also not common enough to simply stumble upon them (in most areas), so you'll have to find out about these locations in advance. They are typically marked on hiking maps, and there are lists and books describing the more picturesque ones in detail.
The Society for the Protection of Nature in Israel operates "Field Schools" in many popular hiking regions in Israel. These establishments function as information centres for travellers, and also provide services such as inn rooms, guided trips (which must be booked in advance) and the like. Consult these about hiking trails as well as hazards and safety instructions.
Below is a list of those Field Schools, each specializing in a different area of Israel, ordered north to south:
phone: +972 4 6961234
phone: +972 4 6965031
phone: +972 4 6620432
phone: +972 8 6728755, +972 8 6727895
phone: +972 2 9975516
phone: +972 8 6584288
phone: +972 8 6588615Comfortable, inexpensive inn rooms. The school also provides tourist information and can conduct guided tours (must be ordered in advance).
phone: +972 8 6371127
- Various degrees of leave-no-trace camping are popular among hikers in Israel, so it's advisable to consult that page to learn some good practices.
- It's forbidden and harmful to leave markings on rocks, trees and the like. What would give one traveler some small feeling of pride could be a real eyesore for all those who come after.
- Many flowers and plants in Israel are considered protected and it's forbidden to pick them. If you're not sure, don't touch; just enjoy the sight and smell.
- Israel contains several endangered and protected species of animals. Feeding them, though providing entertainment, is usually harmful in two ways: human food is mostly unhealthy to wildlife (even if they like it), and it makes them dependent on humans, degrading their survival skills. Be content to watch the animals from afar and not get them to come to you.
Nature reservesReserves and parks are managed by the Israeli Authority for Nature Reserves and National Parks. Some have an entrance fee (usually around ₪30 per person), though most are simply free wilderness areas. The most important regulations to note about these reserves, both the paid and the free of charge, are:
- Hiking in reserves is only allowed on marked trails.
- Driving in cars and Jeeps is only allowed on dirt roads with trail marks, as well as on paved roads. On some roads, signs forbid all car access.
- Overnight stay is forbidden (either camping or night hiking).
- Overnight camping is allowed in specific camping grounds which are marked on travel maps and usually declared by signs. These locations are usually free of charge but contain absolutely no facilities - no running water, restrooms or anything at all.
- Most importantly, Nature Reserves are declared as areas in which it is strictly forbidden to interfere with nature. Do not feed animals, break tree-branches, burn wood (even if it's down-and-dead) or make any markings on rocks, trees and the like. Also, it is forbidden to remove anything from a nature reserve – not even a small plant or pretty rock.
- Paid reserves could have additional rules, such as specific opening hours or a prohibition on bringing food into the area.
- Tap water in Israel is good for drinking.
- The potability of natural water sources is unknown and shouldn't be counted upon. Some areas are suspected of contamination even if the water looks and smells fine.
- There usually aren't any water taps near hiking trails or even in campgrounds, except in paid campsites.
- If you're unused to the weather in Israel, you should consult experienced hikers to find out how much water you should carry. If there's no one you can ask, use the following numbers; they may look like too much for travellers from more cool countries, but there can be a huge difference on that account. Remember that they only refer to drinking water, not including cooking and other uses.
- In cold days or when most of the walk is in the shade, carry at least 3 L per person for a whole day.
- In cool days of winter, fall and spring, which aren't really cold, carry 4.5 L.
- In warm (not extremely hot) days on easy and moderate trails, carry 6 L.
- Hardcore hiking in the desert at summer really shouldn't be done until you know how well you can handle that. If you do decide to do that, carry at least 7.5 L of water until you're sure you know how much you drink; it's pretty likely you really will drink it all up.
- In Israel, you're never more than a day's hike away from some settlement.
- However, that doesn't mean you can always see the nearest settlement, so you still might get lost.
- Most (but not all) settlements have at least a small grocery store; however, in small settlements such as Kibbutzim, these may not be open on all weekdays.
- Carry some cash with you for food purchases. A rough estimate says ₪30 per person a day are usually what it's gonna take, but leave generous margins beyond that.
- On Saturdays and holidays, it's nigh impossible to find an open supermarket. In large cities or at gas stations you'll have 24-hour shops, however they may not have a large variety of commodities.
- Consider taking a gas stove to make some tea or coffee during some stop on the way.
- Keep in mind that most hiking trails go through nature reserves, meaning that open fire is prohibited but stoves are OK.
- Cooking is a good idea on hikes of more than one day. See the list of equipment for overnight stay, below.
- Consult the weather section above to determine which clothes to carry.
- Sunscreen lotion is a must for hiking trips. Visitors from Europe and other non-tropical regions are unfamiliar with the potential effects of prolonged exposure to the sun in subtropical regions. Especially those with a pale complexion will – if not protected – undoubtedly get sunburns, which hurt for several days. Unprotected exposure also increases the chance of getting skin diseases, including even cancer. Lotions are available for sale on pharmacies, and during the summer – on most supermarkets. Choose one with an SPF (Skin Protection Factor) of at least 30.
- For the same reason, as well as to avoid heat strokes, always wear a hat.
- Choose shoes or sandals fitting for your hike. Hiking boots are recommended for most trips. For trails including water crossings, you might prefer sandals.
- Many popular hiking trails in Israel go along water streams. Swimsuits are recommended in those.
- Some trails pass near interesting religious sites of any of the various religions that are observed in Israel. If you're interested in visiting those, carry some modest clothes with you.
- As mentioned above, travel maps can be bought but only in Hebrew.
- Israel's nature isn't all too wild, so usually no excessive survival gear is required.
- Like everywhere else, there are some items which could always come in handy, such as multitools, first aid kits and flashlights. Note that more than a few hiking trails pass near caves, for which lights are very recommended.
- Marked hiking trails in canyons and cliffs almost always have set ladders or iron rungs. These do not require any additional safety equipment and are mostly fit for all ages (excluding very young children). Only a few trails require the hikers to bring their own rope, and they're always indicated on travel maps, guidebooks and the like.
Equipment for overnight stay
- A sleeping bag of about -3°C Comfort should be just fine for all but the coldest nights in Israel. In summertime, those simple bags that don't even have a temperature rating should suffice.
- A sleeping mat is recommended for protecting the bag, for comfort when sleeping on rough terrain, and on cold nights – for thermal insulation.
- A blanket to keep you cozy before the fire or in the camp in general, before getting into the bag. Especially in the Negev and Judaean Desert, hard, cold winds tend to blow just as the sun sets.
- It's highly recommended to get some hot meals during long journeys, and for this you'll need:
- Enough water for cooking
- Possibly oil
- A pot and various cooking instruments
- A stove and gas...
- Or means to make a bonfire. In some cases, you'll have to bring your own firewood:
- * In reserves, it's forbidden to burn local wood, even if it's down-and-dead
- * In the few areas of the desert that are not inside some reserve, use only down-and-dead wood, as trees and shrubs are the rare food source of local animals; and since there might not be enough wood, you may have to bring your own from home
- * When travelling in a large group, you may not be able to gather enough local wood to make a large-enough fire
Note, if you camp outside of the official camp sites inside a nature reserve, you can be fined a heavy 700 shekels. And be assured the park ranger do often go through to check to usual suspected sites. However, they might just bring you to the next official camp site if it is not dark yet.
When planning a trip of several days, make sure to plan for resupply stations. Carry enough water in between, as well as cash for food purchases.
Animals can be attracted to food, both fresh and leftovers. While these won't be bears like you get in Yellowstone, these could be wolves or jackals that can steal your food, or can even (rarely) be rabid. Clean all your pots and other items before you go to sleep, and leave them to dry away from where you lay. Put any food inside your backpack, and place the bag very close to you. When hiking in a group, best to have everybody sleep around the backpacks. Garbage and leftovers should also be placed inside the backpacks. If that is not possible, better put everything in a bag and hang it on a tree, away from your sleeping bags. If you have some warm food left in a pot which you want to save for tomorrow, cover the pot and place some heavy rocks on it, and again – place it at a safe distance.
This section details safety considerations that need to be made while planning the trip. For safety issues that may arise during the hike, see Stay safe, below.
Flash floods can occur in some streams and creeks, mostly in the Judaean Desert, Jordan Valley (essentially a part of the West Bank) and some places in the Negev. The catch is, even a light rain in the right place could cause a flash-flood to build up many kilometers down the stream where no clouds may be visible. Don't assume that a seemingly cloudless sky means that all's well – always check the weather forecast in advance, in any trip, any time. The aforementioned IMS provides special warnings for those events, stating the specific problematic locations.
If you do encounter a flooded stream, don't ever try to cross it, even if it doesn't look too intimidating. There are two reasons for that: first, rocks and debris carried hidden in the water could hit you without warning and bring you down; and second, a weak flow of water could change in a second to the strong wave of a flash flood.
If a dry stream you're walking in suddenly starts flowing, you must immediately find a way to climb up and out of the path of the water. Each year in Israel, some lives are lost because of these floods.
Army firing zonesMany areas of Israel, especially in the Negev, are used by Israel Defense Force (IDF) units for training, sometimes using live fire. Most of these areas are not fenced or marked in the field, therefore it's a critical point to check out before going on a trip. Entrance to these firing zones is allowed only on Saturdays, as well as on certain Jewish holidays − but not all of them! On all other days, prior coordination with the IDF is required. Unless you're a Hebrew speaker and very familiar with Israel and with the specific area in which you intend to hike, it's recommended to simply contact one of the Field Schools mentioned above and ask for their assistance in the matter, or simply to go on some organized trip (ones are occasionally lead by said Field Schools).
Note also that in certain areas of the southern Negev, south of Makhtesh Ramon, hiking is prohibited even on Saturdays, and allowed only for a few days a year, in specific holidays.
If you do wish to make all arrangements on your own, you can try and coordinate with the IDF using one of the following numbers, depending on where in Israel you intend to hike:
Northern Commandphone: +972 4 6979007The Carmel Range, Jezreel Valley and north of them
Central Commandphone: +972 2 5305042mainly the Coastal Plain, Jerusalem region, Shfela and the Dead Sea
Southern Commandphone: +972 8 9902927, +972 8 9952205the Negev
Keep in mind several things:
- The person you speak to on the phone might not speak English
- They will require information on the trail you intend to take, such as its identifying number, so have a travel map handy
- For some trails it's required to request permission up to two weeks in advance
- Usually you will only get a final response just one or two days before the intended date for the trip
- The IDF may require you to send a fax with all details, as well as to provide a number for return fax
- You may, after all, not be given permission
If the trails do lead you to the vicinity of a minefield, just watch your step and make sure not to deviate from the path. In all areas, if you see an unidentified metal or plastic object, don't touch it and inform the police as soon as possible. The most common mines are fist-sized and cylindrical with some protruding features, but there are other varieties, and besides – mines aren't the only danger: duds can be found near military training areas.
Hostile areasThe Arab-Israeli conflict is a constant issue at present. For hikers, these are the most dangerous areas:
- The area surrounding the Gaza Strip in the western Negev, near the Israeli cities Sderot and Netivot. Every once in a while, rockets actually fall in that area. The "Iron Dome" anti-missile system intercepts most of the rockets headed for populated areas, but ignores rockets headed for rural areas. When hiking in the wild, no one protects you and help will not come quickly. Make sure to familiarize yourself with the emergency procedures in case of an alarm, and always check the news in advance.
- The West Bank, in which the most popular hiking spots are in the northern Judaean Desert, east and southeast of Jerusalem. The danger here is mostly for Jewish travelers, to whom many Palestinians are hostile. Specifically in Wadi Kelt, three different groups of Israeli hikers were murdered in the 1990s.
- Also for Jewish travelers, some Arab towns and villages inside Israel may be hostile. In general, this is the exception and not the rule, but the negative odds are not negligible.
- The Bedouins of the Negev and the Judaean Desert have nothing to do with the conflict despite being Arab Muslims. However, crime rates in their communities are relatively high, so one should act with care. On the other hand, their hospitality is usually unmatched, and most are glad to offer tea or coffee for people on the roads.
- On a final note, while the Golan Heights are disputed between Syria and Israel, on the ground they look like just another part of Israel. The Syrian Druze villages in the Golan welcome visitors of any ethnicity. During the 2006 military conflict with Hezbollah, rockets fell here as well as in the Galilee. And a few stray mortars have hit the Golan since 2011 due to the Syrian civil war. Despite these mortars, the Golan might be the safest place in all of Israel. But do mind the minefields mentioned above. However, the de facto border is not a safe area at all and has only become more dangerous since the Syrian civil war. Don't even think of crossing here.
- During or after rains, you don't want to take a trail that climbs up or down steep canyons or ridges
- Avoid long walks on main roads
- After floods, trails that pass through canyons and streams may be damaged. Best consult a Field School about the current state of any trail, or when inside nature reserves – call its offices
Pick your destination
streams and springs. You'll also find a lot of abandoned bunkers which can be fun to explore. Trails are mostly easy to moderate.
- Minefields all around
- Army firing zones
- Sparse buses, mainly from Katzrin, Qiryat Shemona and Tiberias
- The proximity to Israel's border with Syria makes this a dangerous area only during active military conflicts
- Sparse buses. Buses to the more remote regions depart from the cities in the area as well as from Haifa
- Rains could make the hiking here difficult in winter. The western areas are more prone to these because of their proximity to the sea
- The proximity to Israel's border with Lebanon makes the northern Galilee a dangerous area during active military conflicts (which are quite rare).
The Carmel RangeWhile climbing the carmel is a pretty rough ascent, once you reach the top the trails aren't too steep. Walk through authentic Mediterranean forest and get a great view of the surrounding country. At the western slopes there are many caves, including sites where prehistoric remains where found. Ascents to the Carmel are moderate to difficult, but trails on top are fairly easy.
- Proximity to the sea makes this area prone to rains, which would make the ascents very difficult and dangerous
Ramot MenasheThe hill-country found south of the Carmel is a green, flowery region with some running streams and a lot of forests. Trails are mostly easy.
Ancient ruins also make for beautiful stops along the way, found mainly east or south of Tel Aviv.
ancient ruins of settlements, water holes, hideout caverns, wine- and oil-presses, agriculture terraces and virtually any building required by human civilization. The vast forests make for pleasant, richly green scenery. Trails are mostly easy to moderate.
- Drinking water can only be found in the settlements
- hostile areas and army firing zones exist mainly in the northern parts
- Minefields in some of the streams (well signed and usually fenced)
- Flash floods occur a few times each year
- Days are hot (extremely so in summer) and nights are very cold, usually with strong wind starting around sunset and blowing until midnight
- Poisonous plants make for a great part of the vegetation here, but they're only dangerous if consumed
- Leishmania is a little less rare here than the rest of Israel
- Buses are sparse. It's fairly easy to reach Arad or the Arava junction at the south, but the settlements along the Dead Sea are reachable mainly from Jerusalem
- For most hikes in this region, you'll want to start and finish at the Dead Sea coast, since that's the most accessible area. However, that does mean you'll have to climb up and down the cliffs.
- Drinking water can only be found in the settlements and farms
- Getting food could be a problem, as settlements are few and sparse.
- Army firing zones probably constitute the greater part of this region
- Flash floods can occur, mainly dangerous in canyons
- Days are boiling hot and nights are freezing cold during summer and winter, respectively
- Poisonous plants make for a great part of the vegetation here, but they're only dangerous if consumed
- Leishmania is a little less rare here than the rest of Israel
- Buses only stop at towns and junctions, while hiking destinations are usually a great distance from them
AravaThough it does not offer many trails, the Arava (the plain stretching along the east side of the Negev) does offer some beautiful desert scenery. Many trails to or from the Negev end here, and since this region is a little more accessible to buses, you might want to start or end your hikes here.
Considerations are mostly the same as in the Negev.
This section only deals with emergencies that may arise during the hike. For general safety considerations, consult the Avoid section, above.
Emergency servicesThe two phone numbers which it's absolutely vital to remember are:
- 100 – Police
- 101 – Magen David Adom (emergency health services)
Venomous animalsIsrael doesn't have any bears, lions or other large animals. The dangerous animals are less obvious but, in some cases, no less deadly.
;Spiders: Though they are very common in Israel, cases of attacks by them are rare. Deadly spiders are very rare in Israel (though they do exist), but even the other species can cause great inconvenience, such as local paralysis that could last several days, accompanied by excruciating pain. If getting stung, it's very advisable to go to the hospital as quickly as possible, and it's best to try to take a photo of the spider.
;Rabies and various infections: Though not actually "venomous", bites by any other animal can prove dangerous. If bitten, you should definitely consult a doctor about treatment. It's usually not extremely urgent, but use discretion. To avoid attracting animals, review the Camp section for the recommended handling of food while camping.
;Ticks: Most common in the deserts of Israel. Ticks lay in a hibernated state in areas where animals are likely to rest; caves are very common, as are trees and bushes large enough to provide shade. When they sense an animal (or human) nearby, they wake up and race towards it, then bite. It's hardly felt, and the mark left is pretty small, but it can infect the victim with various fevers, mainly the Relapsing Fever. If, 1-3 weeks after a hike, you start feeling unwell – mainly high body temperature and headaches – immediately consult a doctor and inform him of your situation. The Relapsing Fever is called in Hebrew Kadakhat HaMe'arot (literally "Cave Fever"). It can be deadly in some cases, so do not delay after the symptoms appear.
;Sandflies carrying leishmania: The sandfly, pretty much indistinguishable from any normal housefly, is sometimes a carrier for the leishmania parasites which nest under your skin and cause leishmaniasis, nicknamed in Hebrew Shoshanat Yericho – literally "Jericho Rose". It's so called because it was common mainly in the Jordan Valley and the Jericho region, though nowadays it can (uncommonly) be found in most regions of Israel. The "Rose" part derives from the appearance of the fly bite; it looks like a mosquito bite, only it stays there for months, and every once in a while bursts out with blood. In Israel it usually results in nothing more than a really ugly scar, but in very rare cases – primarily in people with previous health conditions – it can cause permanent damage and even death, if the parasites nest internally. Treatment is very advisable, both for a faster healing of the blistering wound and to minimize the remaining scar. Consult a doctor, who would probably advise the use of some ointment.
Kick it up
Watery trailsWhen the Israelis talk of a stream or river (Nahal in Hebrew or Wadi in Arabic), they're usually talking about dry canyons with perhaps a few short stretches of water that's actually flowing. For this reason, the relatively few ponds and running streams that can be found make for popular attractions and fantastic destinations. It's very common in Israel, when planning a trip, to make such water sources the actual pivot of a hike - all the rest of the plan made just to include it. Travellers from cooler and more lushly watered countries will probably quickly understand the Israelis' enthusiasm for such spots in this relatively warm country, especially if travelling in summer.
A few points you should consider about that subject:
- As said, if you hear of a "stream" or "river", it's usually dry unless you were told otherwise.
- Even a stream or reservoir that was flowing or full to the brim during winter, could be completely dry by mid-summer.
- Many running streams aren't very deep. You'll probably only have to get knee-deep in water, and sometimes that can also be avoided. However, in some trails (especially during winter and spring) the water can get up to your waist and, very occasionally, you'll even have to swim across some sections. Consult regarding your specific travel destination. Especially in the canyons of the Negev and Judaean Desert, there may be very deep water basins during winter, even if there is no running water in the canyon except during floods.
Attractions and sitesSome regions of Israel are rich with the remains of ancient cultures, which make for interesting and impressive stops along the way. Additional "wayside attractions" may include various paid nature reserves that offer short trails.
Paid sitesIn some nature reserves in Israel you'd be required to pay for the entrance, a sum in the range of ₪15-50. In national parks the payment is about the same. If you intend to visit a lot of either, you should probably buy the Nature & Parks Authority's "Green Card", sold only to tourists (valid only with a foreign passport) which would allow you a one-time access to all reserves and national parks over a duration of two weeks.
In paid sites you'll be offered brochures that recommend an itinerary/ies for visiting all parts of the location, and also contain background data about the site, its history, geology and the like. In some places there'd be regular guided tours or information headphones, either for extra payment or not. If you are interested in more detailed explanations, consider hiring a guide, possibly from the nearest Field School.
You should be aware that in some of the reserves, there's a sort of a silent agreement between the Authority and the backpackers that if you are passing through as a part of a longer hike, and you don't come through the main entrance, then you don't have to pay. However, that is not always the case, and in some reserves the rangers you'd encounter may demand to see a ticket if they suspect that you haven't passed through the payment stations. As a general rule of thumb, if there's a fence, then you shouldn't climb over it.
Free sitesNumerous ancient ruins in Israel haven't yet been capitalized upon. In the Shfela you'd see them all around you whether you like it or not, and in many other regions you're also bound to stumble upon some. If you acquire a travel map, you'll know where to find them, as they're all clearly marked on these. Some of these sites consist merely of a few half-fallen stone walls, while others contain the remains of actual buildings that you can enter or climb over, and sometimes there'd even be remains of decorative engravings and other such elements.
These sites could be great additions to your trip. However, you should also tread with care in these, as some may be unstable. Don't try to test them, and don't climb unless there's an arranged way that leads to roof or such.