Jacob's Well one of the longest underwater caves in Texas. It is one of the most interesting places in the Texas Hill Country. It is a really significant natural geologic treasure. The water in Jacob’s Well is so transparent that it seams like you are jumping to empty space. Jacob’s Well is a rich habitat for aquatic species.
But at the same time Jacob’s Well is a very dangerous place. Its diameter is 4 meters, the depth is about 10 meters. It ends with many endless branch caves that people have never been to. Up to this day 8 divers were lost in those caves during the investigation.