POTOTAN CAVE

Barangay Tinucawan, Batan Island

A four-hour spelunking adventure site, about 10 feet above the beach line. Its cave entrance is shaped like a yawning mouth, about 30 ft high and 20 ft. wide. Once inside, an underground river that spans around 12 ft high calmly flows into the different chambers and passageways. Stalactites and stalagmites of various shapes, sizes and contours are carved on craggy walls.

CALABIDONGAN CAVE

Camalig, Albay

It literally means “cave of the bats.” Explorers have to trek, cross over brooks and river before reaching the cave mouth and swim across a seven-foot lagoon called lizard’s gate;then, some out into an overwhelming cathedral with s streak of light pouring in from its ceiling. Requires heavy spelunking.

MINAROSO CAVE

Villahermosa, Batan Island

Minaroso is a rarely explored natural cavern. It is a haven of seabirds and swallows and believed to be an ancient burial site of the early Bicolanos.

CAGBULACAO CAVE

Misibis, Cagraray Island

The cave was a stone tool-jar site that yielded stone axes, stone gauges, glass earrings, potteries and jar burials attributed to the late Neolithic period. Found in Misibis, Albay