It happened, when Saul was returned from following the Philistines, that it was told him, saying, Behold, David is in the wilderness of En Gedi.
There was a cave!  Indeed there was.  Literally hundreds of caves are in that area.  However, there was a special cave at Engedi, so large that the Franks called it a labyrinth.  The Arabs called it "A Hiding Place," and report that at one time 30,000 people hid themselves in it.  The entrance to that cave was very inconspicuous, giving no hint whatever of the size of the interior.  Keil, who gave us this information, also stated that, "It is an arguable conjecture that this was the very cave which Saul entered."[6]