Duba Cave

Duba Cave is a natural limestone cave system located in Barangay San Miguel, Baggao, in eastern Cagayan Province, Philippines. Managed as an ecotourism site by the local government, it is known for its stalactites, stalagmites, rock formations, and clear natural pools fed by an underground stream. The cave requires a short trek and guided entry and is a key attraction within Baggao's cluster of caves and waterfalls.

Visitors can expect a guided adventure caving experience through a limestone cave with stalactites, stalagmites, and flowstone formations. The cave interior has shallow natural pools and a small underground stream where wading is required. Access involves a trek from Barangay San Miguel through forested and riverine terrain to the cave entrance. Inside, passages are uneven, slippery and dimly lit, requiring a guide and flashlight. The surrounding area is rural and forested.