Maratua

Maratua is an island in the Berau Regency, Indonesia, surrounded by the Celebes Sea in the western reaches of the Indian Ocean. The atoll sits off East Kalimantan and is known for its remote, pristine reef flats and lagoon environments. With only a couple of dive centers on site and limited in-town infrastructure, access is typically by charter flights or boat transfers from larger hubs in East Kalimantan. Local diving tends to focus on drift and wall encounters around the atoll, with opportunities to see turtles and a variety of reef fish. Freshwater options are not available in the immediate vicinity, so divers should plan for full itineraries and bring essentials. For visitors, Maratua acts as a gateway to remote reef systems and is best suited for divers seeking uncovering pristine wall and tropical marine life in a less developed setting.