Located on the northern part of the Bohol Island, the Danajon Bank or Double Barrier Reef is the sole double barrier reef to be found in the Philippines. The reef spreads across 130 kilometers and consists of three large reefs all together. The name Danajon comes from the word “dahunan” which is a local name of a stingray that was previously abundant in the reef.
The Danajon Bank is composed of two large coral reefs that were created offshore on a submarine ridge largely through a combination of constructive tidal currents and coral development in the area. The reef is a rare geological phenomenon built by coral growth and is believed to be a result of over 6000 years of development. It also has an abundant marine flora and fauna. The enormous reef structure protects its denizens from strong currents and storms and thus encourages a good variety of micro-habitats to flourish inside the reef slopes and lagoons. The bank is an important source of biodiversity and a large breeding area for many types of fish and invertebrates. It is apparently also a critical pathway of the Asia southward bird migratory route. [Read more…]