Source of images:www.bohol-philippines.com
DANAJON DOUBLE BARRIER REEF
Parallel to the northeast coast of Bohol is a very rare geological formation known as the Danajon Double Barrier Reef. It is one of the 6 double barrier reefs in the world, one of 3 in Indo-Pacific and is the only one of its kind in the Philippines and Southeast Asia. It is composed of numerous but diverse islets and reef patches joining together into an inner Calituban and outer Caubyan barrier reef. Because of its unique coral reef ecology, it is a major breeding ground and habitat of many different species of fishes, marine mammals, mollusks, and seagrasses.