Koh Tarutao is 26km long and 11km wide, with palm and casuarina-fringed beaches, mangrove swamps, jungles that were pirate hideouts, and mountains that reach up to 700 meters. Raw and less visited, it stirs up a primal sense of awe. Koh Tarutao is the largest island of Tarutao National Marine Park, and there is a lot to explore here. From beachcombing Robinson Crusoe style with not a single soul around to exploring waterfalls and caves for those who feel adventurous at heart. Crab-eating macaques, langurs, and boars are very common in Koh Tarutao forests. Boars tend to show up more around evenings. A slow and silent night walk along the roads with strong flashlights in hand could be rewarded with a high chance of encountering civets and mouse deers.