Lae Khao Kob cave is a unseen Thailand place hidden under a huge limestone mountain surrounded by a stream running through it. You visit it by rowing boat. But not alone. You have to hire the services of experienced boatmen who know the cave perfectly because a large part of the navigation is done lying on the boat as the ceiling is very low. The visit of Tham Le Khao Kob cave is done in 4 stages: a trip by boat to the entrance then in the cave to a point where you disembark to discover the place on foot with one of the 2 boatmen then another journey by boat to the exit. The last boat part is the most impressive, even lying down, you graze the upper wall very closely. The locals called this nearly 500 meter long section, the dragon's backbone, a name referring to the aspect of the rock. There is a belief that going through this hole is a good omen. However, as I said, it is not recommended for claustrophobic people because it is impossible to turn around..
Inside the Tham Le Khao Kob cave, there are many stalagmites and stalactites. In the walking part, we particularly notice the elephant feet, the Hin Ta Hin Yai rocks (like the ones at Lamai Beach in Koh Samui but in stalagmite version), there is a small sanctuary and several sacred places. It's a nice adventurous tour but you have to know what to expect and decice if you want to go or not.