Covering a total area of 152 square kilometres, Mu Koh Lanta National Park is located in Amphoe Koh Lanta and consists of many islands. Some major islands are Koh Lanta Yai, Koh Lanta Noi, Koh Taleng Beng, as well as, other surrounding islands like Mu Koh Ha, Mu Koh Rok, and Koh Ngai.