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
Lonely Planet's must-see attractions
6.58 MILES
This stunning 165-sq-km lake sits 65km east (an hour’s drive) of Khao Sok National Park Headquarters. It was created in 1982 by an enormous shale-clay dam…
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This tiered waterfall makes for a nice half-day trip away from the beach. You can reach the park entrance by travelling 5.3km from the main road. From the…
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Khao Sok National Park is close to the Andaman Sea, and possesses the classic Andaman topography: signature fern-covered limestone cliffs that shoot…
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The wave-shaped Tsunami Memorial Park in Ban Nam Khem, a squid-fishing village 26km north of Hat Khao Lak that was nearly wiped off the map in the 2004…
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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…
Nearby Khao Sok National Park attractions
0.75 MILES
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…
5.97 MILES
Khao Sok National Park is close to the Andaman Sea, and possesses the classic Andaman topography: signature fern-covered limestone cliffs that shoot…
6.58 MILES
This stunning 165-sq-km lake sits 65km east (an hour’s drive) of Khao Sok National Park Headquarters. It was created in 1982 by an enormous shale-clay dam…
24.02 MILES
The wave-shaped Tsunami Memorial Park in Ban Nam Khem, a squid-fishing village 26km north of Hat Khao Lak that was nearly wiped off the map in the 2004…
29.8 MILES
This tiered waterfall makes for a nice half-day trip away from the beach. You can reach the park entrance by travelling 5.3km from the main road. From the…