The Koh Ang Thong National Park covers 42 islands in a total area of 102 km2, of which only 50 km2 are land and the rest is water.
The Islands include breathtaking panoramas, sandy beaches, rocky cliffs, coral reefs and young mangrove forests.
Over many centuries, the sea and the weather have created peculiar-looking caves and cliffs. Locals often named them after their distinguishing shape, such as "Sleeping Cow", "Three Pillars" and - Chicken's Island. Part of the movie "The Beach" starring Leonardo DiCaprio and Tilda Swinton, was filmed here.
On land, dry evergreen forest covers the large islands of Koh Wua Talap, Koh Paluai, and Koh Sam Sao. The Koh Ang Thong Lady' s Slipper Orchid, is an endemic species found only in Koh Ang Thong.
Plants found in limestone crevices with little or no soil, are often small, dry-tolerant, and slow-growing such as Dracaena Loureira, Malayun Spurge Tree, Euphorbia Antiquarum, and Morinda Tinctoria. The wildlife consists of smaller animals and includes 16 species of mammals, more than 50 species of birds and 5 species of amphibians.