Tham Nam Yen Cave located at a dozen kilometers from Phatthalung in the district of Khao Chaison, area whith several interesting visits even if its floating market closed for lack of customers, can only be visited by boat with a local guide because has an underground river. Inside you will see interesting rock formations and stalactites some of them glitter and bats of course. You will feel a little bit like an explorer having to lie down completely on the boat sometimes to be able to pass.
Otherwise, there is also the cave of the tiger and its lights turning from blue to red which overhangs the immersed part.
Tham Nam Yen
Location: Khao Chaison, Khao Chaison District, Phatthalung 93130 Thailand