Libtec Underground River

Libtec Underground River is a natural cave river attraction located in Barangay Libtec, municipality of Dolores, Abra Province in northern Luzon, Philippines. The river flows through a limestone cave system surrounded by forested hills and karst landscape. It is known for its clear underground water, rock formations, and tranquil natural setting. The site is managed as a local eco-tourism destination and is accessed with community guides from Libtec.

Visitors can expect a short trek from Barangay Libtec to the cave entrance followed by a guided exploration of a limestone cave with an underground river flowing through it. The setting is natural and forested, with rock formations, cool cave interior, and clear water. Access is typically on foot and by small raft or wading depending on water level, with local guides leading the tour and explaining features of the cave system.