Visit Sai Cave (Prachuap Khiri Khan)

If the Phraya Nakhon Cave is the the most famous cave in Khao Sam Roi Yot National Park, Tham Sai located on the high hill near Ban Khung Tanot about 9 km from the national park office is also interesting with its superb stalactites which almost form a waterfall in its main room lit by a skylight.

The cave is accessed via an arduous hike in the forest. Even if it is only 280 meters, it is not a easy walk. The cave is quite dark and there is no lighting system so I recommend that you take a good flashlight even if the most interesting part is naturally lit by an opening. Note that there is a third famous cave in the park, the Kaew Cave, but do not go there without a guide, there have been several accidents. Personally, I preferred not to go to this one.

Sai Cave is part of Khao Sam Roi Yot National Park so you will need to have an entrance ticket to the park to go up there or buy a ticket at the kiosk located at the parking lot.