Caves: Engedi
Source: TTT
1 Samuel 23:29
And David went up from there and lived in the strongholds of En-gedi.
1 Samuel 24:1, 3
After Saul had returned from pursuing the Philistines, he was told, “David is in the wilderness of En-gedi.” / Soon Saul came to the sheepfolds along the road, where there was a cave, and he went in to relieve himself. And David and his men were hiding in the recesses of the cave.