Exploring Berau's Coral Reefs and Mangrove Forests

Tourists observe coral reefs while diving in the waters of Pulau Balikukup, Berau, East Kalimantan, on Monday 1 June 2026. The Ministry of Marine and Fisheries (KKP) stated that Berau’s waters are the heart of the global coral triangle connecting Indonesia with Malaysia and the Philippines, and serve as a migration route for high-value marine species.

Proboscis monkeys (Nasalis larvatus) hang from mangrove branches in Sigending Mangrove Forest, Biduk-Biduk, Berau, East Kalimantan, on Monday 1 June 2026. According to KKP data, the area spans 17,704 hectares and is home to approximately 397 species, including birds, mammals, fish, and coral reefs, with the potential to reduce annual CO2 emissions by 72,505 tonnes.

Tourists visit Sigending Mangrove Forest in Biduk-Biduk, Berau, East Kalimantan, on Monday 1 June 2026. According to KKP data, the area spans 17,704 hectares and is home to approximately 397 species, including birds, mammals, fish, and coral reefs, with the potential to reduce annual CO2 emissions by 72,505 tonnes.

A sea turtle swims in the waters of Pulau Balikukup, Berau, East Kalimantan, on Monday 1 June 2026. The Ministry of Marine and Fisheries (KKP) stated that Berau’s waters are the heart of the global coral triangle connecting Indonesia with Malaysia and the Philippines, and serve as a migration route for high-value marine species.