Getting there and around
- Kalimarau Airport · 110 km drive + speedboat transfer
- Sultan Aji Muhammad Sulaiman Sepinggan International Airport · Domestic connection to BEJ + onward transfers

Mantas, turtles, and a stingless jellyfish lake in a remote Coral Triangle corner of Borneo
Overview
The Derawan Islands (Derawan Archipelago) sit off Berau in East Kalimantan and are best known for four names: Derawan, Maratua, Sangalaki, and Kakaban. It is a Coral Triangle mix of easy house reefs and current-swept points where mantas, turtles, and big schools can show up on schedule.
A typical trip blends reef dives for macro and turtles, drifts on wall edges when tides line up, and at least one topside day for Kakaban's famous stingless jellyfish lake and nearby lagoons. Logistics are part of the adventure: most itineraries route via Berau (BEJ), then a drive to Tanjung Batu and speedboats into the islands.
Plan for remote-island realities, carry dive insurance, and treat the area like a working conservation landscape. Do that, and Derawan delivers big-animal moments, unique brackish lakes, and quiet island time far from the usual routes.
Derawan sits in the Western Coral Triangle, with reef, wall, and lagoon habitats that support big animals and macro life.
Sangalaki is a signature stop for manta encounters, and turtles are common on reefs and beaches across the island group.
Kakaban's brackish lake with stingless jellyfish is a rare, topside-friendly highlight that pairs perfectly with dive days.
Quick shortlist before you jump into the full planning page.
View On MapShallow areas can be snorkel-friendly for experienced swimmers with a guide when mantas are present.
A wildlife-focused zone where rays and turtles may pass through at snorkel depth in calm conditions.
A current-exposed point where pelagic action can spike when the flow is right.
Top species linked to approved dive spots in Derawan Islands.
Getting here takes effort, which keeps the vibe quieter than many Indonesia hotspots. Expect simpler infrastructure and more nature.
Carcharhinus amblyrhynchos
13 linked spots