BioRock - All Levels

gili air spotted stingrayArtificial Reef. Depth: 5-25 m, 25 minute boat ride from the dive center. Beginner to Advanced.

Manta Dive was one of the pioneers in Gili Trawangan to place a Biorock Reef back in 2006. Since then we have supported the placement of over 100 Biorock structures along the East shoreline of Gili T.

Biorock technology uses low voltage currents passing through steel structures resulting in the accretion of solid limestone. Limestone is the best substrate for hard coral growth. The low currents are safe for humans and all marine organisms. The Biorock Reef has resulted in faster growth rates and healing times for stony corals as well as higher survival rates from bleaching events.

The Biorock project has successfully regenerated and populated damaged reef, increased the biodiversity of marine organisms, and protected the beaches and shoreline from coastal erosion. These artificial reef structures vary in size and shape, and extend down to 18 m with the most dense coral growth occurring in the shallows. Soft corals, sponges, tunicates and bivalves can also be observed growing on Biorocks.

Juvenile Reef fish, Scorpion fish, Lion fish, Damsels, Butterfly fish, Trigger fish and Trumpet fish are just some of the local residents. Manta Dive is currently adding new Biorocks to the East side of Gili Air. Perfect for divers and snorkelers alike, the Biorock Reef is a great example of how divers have positively impacted the reef ecosystem in the Gili Islands. To learn more about the Biorock process or find out how you can become involved please contact us at Manta Dive.