NAM TOK NGAO
( KhlongPhrao National Park, Ranong )

This is a waterfall with its whole stream cascading from a high mountain. As of the large size, it can be seen from a distance. Furthermore, a new species of fresh water crabs was found here. It is called "Pu Chao Fa" or "Prince Crab". Here is the only place in Thailand, in the world, that it was found.