This is the most famous dive site in the province of Romblon. It is a vertical chimney of about 8 meters in diameter. At a depth of 5 to 7 meters you descend to a depth of approximately 27 to 32 meters, where you find a large opening to the reef. At the bottom of the cave, there are cracks where hundreds of Durban dancing shrimps and large lobster can be found. Below the opening to the reef there are small caves where sometimes sharks are hiding.