We took a day trip to climb some rocks in the Nahal Prat Reserve (about a 20 minute drive outside of Jerusalem through a couple of checkpoints) and had a picnic afterward in front of a cave. On the trip there, our Israeli version of Tom Tom kept telling us we were above the speed limit but did not tell us to go under it. We went with a rock climbing guide who set up 3 routes of increasing difficulty; the hardest one had a middle section under an overhang. If you go climbing, be sure to drink lots and lots of water. I may have gotten a bit of heat stroke during the climb. We then hiked a bit further into a park and had a picnic in a cave above Nahal Prat springs. The springs were a great way to cool off in the hot sun and little fish pecked at our feet.