Flora and Fauna
Vegetations, able to classify the society of plants as follows :
Primary rainforest covers most area of the national park, both of slope and ridge of mountain. The important plants found here are Diospyros malabarica Kostel., etc.
Beach forest could be found in beach areas where you can find many kinds of plant such as Barringtonia, Cerbera odollam, etc.
Mangrove forest is located in the mud area and the brackish water of Mae Yai bay. This is not the fertile forest but you can find some kinds of plants such as Rhizophora apiculata, Rhizophora mucronata, Xylocarpus granatum, etc., while some dwarf forest or grove plants comprise of Cycas pectinata Griff., Dillenia obovata (Bl.) Hoogl., Erythroxylum cuneatum Kurz, etc.