Indo Master: Raja Ampat and Halmahera, 12 nights

12 nights across the Halmahera and Molucca seas, crossing the Equator, with up to 36 dives. Up to 4 dives a day, or 3 plus a sunset or night dive. Designed for experienced divers. Visibility up to 40 m, per the operator.

An area plan: the operator publishes no day-by-day for this route. The route and sites are an example and change with local regulations, guests’ experience, flights, weather and logistics, at the captain’s discretion.

The route starts or ends in the Lembeh Strait, depending on the direction.

Southern Raja Ampat: limestone pinnacles, submerged ridges and current-swept reefs in protected reserve waters, with dense coral, schooling fish and a chance of manta rays.

More ocean-influenced diving on seamounts, sloping reefs and deep drop-offs that draw pelagic fish, in a little-visited part of North Maluku.

Near Bitung: muck diving for rare critters, a contrast to the reefs and blue water before it.

Disembark at the other port. The crossing includes overnight sailing.