Than Bokkhorani National Park (อุทยานแห่งชาติธารโบกขรณี) The park covers an area of 121 square km. The landscape is dominated by a series of limestone mountains, evergreen forests, mangrove forests, and numerous islands. The main flora is evergreen forest, peat swamp forest, strand forest, and mangrove forest, as well as, various types of marine flora. Other attractions include: Than Bokkhorani (ธารโบกขรณี) which is home to various flowing streams and numerous pools of different cascades among a shady forested area and two caves, Tham Lot and Tham Phi Hua To (ถ้ำลอดและถ้ำผีหัวโต)