Tham Phra Wang Daeng

Tham Phra Wang Daeng, also known as the Cave of the Monk (Thai: ถ้ำพระวังแดง), is a deep cave located in Thung Salaeng Luang National Park, Amphoe Noen Maprang, Phitsanulok Province, upper central Thailand. It is the longest cave in Thailand, the distance is about 13 kilometers. Buddhist statues and relics, carvings and reliefs, a subterranean river, multiple bat colonies, and a trove of speleothems populate the cave.^[1][2] In 2003, a biological expedition to the cave resulted in the discovery of new fish species, including discoveries in the Balitoridae and Cyprinidae families.^[3]

Tham Phra Wang Daeng
Cave of the Monk
Location	Thung Salaeng Luang National Park, Amphoe Noen Maprang, Phitsanulok Province
Coordinates	16.6806°N 100.6914°E / 16.6806; 100.6914
Length	13,789 m
Discovery	1997–2004

See also

• List of caves
• Speleology