Tham Duean Tham Dao

Situated in the western territory of Thung Salaeng Luang National Park, the cave has a subterranean river running through it. Visitors have to climb over rocks at the cave’s entrance to get in, just to find a large chamber and subterranean river. At the length of 1.4 kilometres, the cave is beautified with stalagmites and stalactites. It can be visited during the dry season and a personal torch is required.High water during rainy season makes it dangerous to visit.

To Get There: The cave is 85 kilometres from downtown Phitsanulok. Motorists can use Highway 12, then use Highway 11 and 1115 to Amphoe Noen Maprang. The cave is 6 kilometres away.