Stumbling Upon a Treasure

The Cave of Letters is perched 600 feet above a canyon on a dangerously narrow ledge. About the approach to the entrance Yigael Yadin wrote: "It was a real test for all of us, even for those who were not prone to fear of heights. I admit that when I got there for the first time, I hesitated, and were it not for the fact that I was in the lead with others behind me, I would not have advanced."