LIDPA Subterranean River

LIDPA Subterranean River is a natural cave and underground river system located in the LIDPA area of Munai municipality in Lanao del Norte, Mindanao, Philippines. It is recognized as a local eco-tourism attraction featuring a river flowing through limestone cave passages surrounded by forested karst terrain. Promoted by the municipal tourism office, the site offers guided caving and nature exploration and remains relatively undeveloped compared to larger subterranean river sites in the country.

Visitors can expect a forested karst landscape with a cave entrance leading to an underground river flowing through limestone passages. The visit typically involves a trek to the site and a guided tour inside the cave to view stalactites, stalagmites and river channels. The setting is natural and largely undeveloped with basic trails, limited artificial lighting and wet, slippery surfaces inside the cave requiring a local guide.