Hat Wanakon National Park is the 18th marine national park of Thailand. It is a mixed deciduous forest generally comprising sparse woods and various shed-leaf plants mixed together such as Phai Pa - Bambusa bambos (L.) Voss, Burma Padauk- Pterocarpus indicus, Makha Mong - Afzelia xylocarpa. Originally, this area was a planted forest, mixed with a natural-grown one, which was just recovered. However, only few kinds of wild animals are discovered in this park. Birds found in this park include the black- naped orioles, Pacific reef-egrets, black drongos, Indian rollers and various other species. The park covers a water area