Satun of the South Attractions Tarutao National Park Tarutao National Park ,there are seven large islands , Koh Tarutao, Koh Adang, Koh Rawi, Koh Lipe, Koh Klang, Koh Batuang, and Koh Bitsi. Koh Tarutao is the largest island of the park The best time for a visit is during November to April.