Lake Rajchaprappha in the western part of Suratthani province is a huge artificial lake with a dam used for electricity production. The area around the lake is part of the mountainous Khao Sok national park. The vicinity around the dam is a meticulously maintained park displaying all the wealth of Thailands electricity company EGAT.
Nearby the visitor’s center at the dam there are longtail boats for hire to tour the lake. For those who would like to stay in the park for several days there are cabins available.