The Lagoon Cave is situated in Ao Luk District in Krabi Province. It is actually a part of Than Bok Khorani National Park. But there is nobody here to collect an entrance fee. The Lagoon Cave is entered from the tidal mangrove river Tha Pring. The entrance in the sheer cliff is about 10 meters wide and 5 meters high. The cave is well lit by natural light. After 30 meters easy paddling you reach the lagoon behind the cave. The lagoon is surrounded by steep cliffs covered in dense vegetation. Some palm trees create a surrealistic impression. The main attraction is a stalactite formation that looks like a life size elephant from behind giving birth to a baby elephant.
The Lagoon Cave is not on the itinerary of the mass tourist excursions, thus it is still only rarely visited, although it is much more impressive than Tham Lot or Tham Pee Hua To.