Bali is located within the Coral Triangle, a marine region spanning Indonesia, Malaysia, the Philippines, Papua New Guinea, the Solomon Islands, and Timor-Leste. This area contains 76% of the world's coral species and over 2,000 reef fish species.
The diversity of coral in Bali is staggering. Hard corals (brain coral, staghorn coral, table coral, mushroom coral) build the reef structure, while soft corals (sea fans, gorgonians, dendronephthya) add splashes of color to walls and overhangs.
Best coral reefs in Bali: Menjangan Island (pristine wall corals), Amed Jemeluk Bay (diverse hard coral gardens), Tulamben Coral Garden (coral growing on volcanic substrate), Nusa Penida Toyapakeh (shallow coral gardens), Pemuteran Bio-Rock project (coral restoration).
The Pemuteran Bio-Rock project in northwest Bali is the world's largest coral restoration project, using low-voltage electricity to accelerate coral growth on artificial structures. It is a fascinating dive that shows conservation in action.
Threats to Bali's reefs include coral bleaching from warming oceans, plastic pollution, anchor damage from boats, and destructive fishing practices. As divers, we can help by practicing good buoyancy (never touching coral), using reef-safe sunscreen, and supporting marine conservation initiatives.
When diving, resist the urge to touch or stand on coral. A single fin kick can destroy decades of coral growth. Perfect buoyancy is the greatest gift you can give to the reef.