This is probably one of the must dos for those visiting or living in Israel. It's a very well developed site that has about 12 or 14 stops. Go to the Israeli National Park website to view a map (they have English maps available at the site). There is quite a bit of walking between some of the sites, but you can cut some of that by using your car to ferry between caverns, ruins, etc...
We went with four young children (under 8 years old). The older ones liked it, the younger ones needed to be carried quite a bit. If you need to hurry through the site, don't miss the bell caves - quarry sites from the late Byzantine era/early Muslim era that are now huge caverns. Impressive.
For the historical sites, the two burial chambers (numbers 8 and 9 on the map) are interesting (especially 8 with the animals drawn on the walls). Several of the other sites are cisterns - if you've seen one, you've seen almost all of them. That said, the kids thought they were cool.
We went on a Saturday morning, which was pretty crowded. There are ample picnic tables located at various places at the site. You can buy some snacks near site 9 (the burial tombs). There are also several restroom facilities throughout the area.
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