Attractions

Lake in Khao Sok National Park

Chiaw Lan Lake

This stunning 165-sq-km lake sits 65km (an hour’s drive) east of park headquarters. It was created in 1982 by an enormous shale-clay dam called Ratchaprapha (Kheuan Ratchaprapha or Chiaw Lan). Limestone outcrops pro…
Cave in Khao Sok National Park

Tham Nam Thalu

Reached on foot from the southwestern shore of Chiaw Lan Lake, Tham Nam Thalu contains striking limestone formations and subterranean streams. Visiting the cave during the rainy season isn't recommended; there have …
Cave in Khao Sok National Park

Tham Si Ru

Tham Si Ru features four converging passageways used as a hideout by communist insurgents between 1975 and 1982, and can be accessed on foot from the southwestern shore of Chiaw Lan Lake.