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 southwestern shore of Chiaw Lan Lake.
Tham Si Ru
Khao Sok National Park
Lonely Planet's must-see attractions
7.06 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…
0.75 MILES
Reached on foot from the southwestern shore of Chiaw Lan Lake, Tham Nam Thalu contains striking limestone formations and subterranean streams. It is only…
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…
29.46 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…
24.04 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…
Nearby Khao Sok National Park attractions
0.75 MILES
Reached on foot from the southwestern shore of Chiaw Lan Lake, Tham Nam Thalu contains striking limestone formations and subterranean streams. It is only…
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…
7.06 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…
24.04 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…
29.46 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…