Home / Locations / Indonesia / Cenderawasih Bay

Indonesia

Diving Cenderawasih Bay

A vast, isolated bay in West Papua where whale sharks live under the fishing platforms year-round.

Cenderawasih Bay

Cenderawasih Bay is the largest marine national park in Indonesia and among the least visited. Its whale shark encounter is unlike any other: local fishermen operate lift-net platforms called bagan, whale sharks learned to suck baitfish from the nets, and the relationship stuck. The result is resident animals rather than a migratory season — sharks that hang vertically under a platform for hours while you share the water with them. The bay's isolation also left its reefs with a strangely endemic fish fauna, cut off from the wider Coral Triangle for long enough to go its own way.

Know before you go

Best season
Whale sharks are resident and seen year-round. Liveaboard schedules concentrate on roughly May to October, when seas are calmest.
Conditions
28–30°C and generally calm inside the bay. Visibility is variable and often unremarkable — the attraction here is not clarity.
Getting there
Fly to Nabire or Manokwari via Jakarta and Manado or Sorong. Almost all diving is liveaboard-based; shore infrastructure is minimal.

Dived with, here

What lives in Indonesia

Recorded across Indonesia rather than Cenderawasih Bay specifically — each page names the sites.

Manta Rays High confidence

Well documented, and reliably seen in season.

Best time: November to June, with Komodo densest in January–February

Mola Mola High confidence

Well documented, and reliably seen in season.

Best time: July to October, peaking August–September

Whale Sharks High confidence

Well documented, and reliably seen in season.

Best time: Year-round resident population; best conditions June to October

Tasselled Wobbegongs High confidence

Well documented, and reliably seen in season.

Best time: Resident year-round; best diving conditions October to April

Leopard Sharks Low confidence

Best time: October to April, the general Raja Ampat season — no shark-specific peak

Bamboo Sharks Likely confidence

Consistently reported, but a good way short of a sure thing.

Best time: Year-round; resident, and a question of night diving rather than season