Reached on foot from the southwestern shore of Chiaw Lan Lake, Tham Nam Thalu contains striking limestone formations and subterranean streams. It is only partially accessible during the rainy season and we don't recommend visiting then; there have been fatalities due to flash flooding. You'll need a guide (per day 1200B) at any time of year; this can be arranged at the Khao Sok National Park Headquarters.
Tham Nam Thalu
Khao Sok National Park
Nearby Khao Sok National Park attractions
1. Tham Si Ru
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Tham Si Ru features four converging passageways used as a hideout by communist insurgents between 1975 and 1982. It can be accessed on foot from the…
2. Khao Sok National Park
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