West Papua, Indonesia
Raja Ampat
Archipelago of roughly 1,500 islands at the centre of the Coral Triangle, holding the highest recorded reef fish and coral diversity of any marine region, dived from liveaboards and from resorts and homestays around the Dampier Strait and Misool.
- Reef manta ray
- Giant oceanic manta ray
- Reef
- Strong current
Best season
Best Oct–Apr
Minimum cert
Advanced
Water
28–30°C
Current
strong
Season
When this place works
The 'limited' case this field exists for. Nothing closes, but from roughly May to September the southern monsoon brings strong winds, high waves and visibility down to 10-15m, and a substantial share of the liveaboard fleet suspends Raja…
Why dive here
What this place is known for
- 01reef
Peak global reef biodiversity
The headline is usually mantas, which undersells it badly. Over 1,600 reef fish species and roughly three quarters of the world's known hard coral species. Cape Kri holds the record for the most fish species counted on a single dive at 374. If you only chase…
02pelagicReef manta cleaning stations
Manta Sandy in the Dampier Strait is shallow enough at 5-8m to work as a snorkel site as well as a dive. Manta Ridge is deeper and current-swept. Oceanic mantas are a separate and much less predictable proposition at Magic Mountain in Misool.
Seasonality — peakpeakpeakpeakshouldershouldershouldershouldershouldershoulderpeakpeak
03macroEndemic and cryptic species
Surprise relative to the headline: Raja Ampat has endemics you cannot see anywhere else on earth. The Raja Ampat walking shark (an epaulette shark that moves across the reef on its fins) is a night-dive target, along with tasselled wobbegongs sleeping under…
Marine life
Twelve-month species timelines
Resident at the cleaning stations year-round with a Dec-Apr concentration. Encounter probability at Manta Sandy in season is reported around 95%, which is unusually high for a manta site.
Magic Mountain in Misool, Dec-Mar. Reported encounter probability around 40%, so treat it as a bonus rather than an itinerary driver. Misool is a long way from the Dampier Strait resorts.
Endemic to the region. Night dives only; it walks across shallow rubble on its pectoral fins. Reported around 85% on a guided night dive. Species-level naming across sources is loose, since several…
Resident, typically motionless under table corals during the day.
Multiple species present. Entirely guide-dependent; the sites are known to specific divemasters rather than published.
IMPORTANT DISAMBIGUATION. Whale sharks are widely advertised alongside Raja Ampat but they are not in Raja Ampat. The aggregation is in Cenderawasih Bay, roughly a three-day passage east, where the…
Conditions
What the water is like
Water temp
28–30°C
15°C — 32°C
Visibility
10–30 m
0 m — 40 m
Current
strong
mild — strong
Thermoclines
Not typical
unlikely
Minimum certification — Advanced
Warm water and no thermocline, so exposure is easy, but current is the whole story. The Dampier Strait sites that make Raja Ampat famous are current-dependent and can run hard enough to require reef hooks and negative entries. Buoyancy in…
Entries — boat
Recommended & required
- nitrox — recommended. Standard on liveaboards; long repetitive days.
Logistics
How people dive it
7-12 days
scuba
The only way to reach Misool, Wayag and the northern islands in one trip. Dry-season itineraries spread across the archipelago; wet-season…
7-14 days
scuba
Resorts cluster around the Dampier Strait and Misool. Covers the highest-density sites (Cape Kri, Blue Magic, Sardine Reef, Manta Sandy)…
5-14 days
mixed
Village homestays are a distinct and much cheaper format, typically snorkel-oriented with limited or no tank fills and basic boats.…
Operators
Who to book with
Loading operators…
Sources & verification
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