The limestone mountain ranges and rugged high cliffs are dominated by amazing rainforests. The Khao Sok National Park was established in 1980. It covers an area of about 650 km². The main attractions of the park are Namtok Mae Yai and Namtok Sip Ed Chan (eleven-tiered waterfall), situated approximately 4 km from the park office. There are also other magnificent attractions here, such as waterfalls and caves.