
Northern Samar
The Biri Rock Formations on Biri Island, Northern Samar, are among the most dramatic geological features in the Philippines — a vast field of enormous black volcanic rock sculptures shaped by centuries of Pacific Ocean waves crashing against the shoreline. At high tide, sea water forces through narrow channels between the boulders, sending spectacular jets of spray skyward in a natural show that attracts photographers and adventurers alike. The surrounding seascape of turquoise water against dark basalt creates an otherworldly beauty unique in the region. Biri Island itself is a protected area with pristine coral reefs and traditional fishing communities.