Dampier Strait is dominated by reef, wall, and drift diving, with currents shaping almost every site. The two main sub-areas, Kri Island and Mansuar Island, each cluster their own distinct sites: Kri offers open-ocean pinnacles and exposed capes, while Mansuar adds walls and manta-frequented drift dives. Most access is by boat. The species list is broad, with Giant Moray, Wrasses, Moorish Idol, and Titan Triggerfish observed consistently, and signature sightings including Napoleon Wrasse, Spotted Wobbegong, and Seahorse.
Monthly water temperature across Dampier Strait's sites, from satellite sea-surface data corrected for depth. The band shows the site-to-site spread.
Water stays warm year-round, with temperatures nudging a little higher from October through December. The best-months data points strongly toward October through April as the prime window, with the mid-year months seeing a notable dip in dive activity. Currents are a defining feature across most sites, making conditions most rewarding for those who plan around tidal movement.
47 operators
42 more sites to explore
2 areas
Water temperature around Dampier Strait ranges from about 28°C in January to 30°C in October, based on satellite sea-temperature data for its dive sites.
With water around 28–30°C, a rash guard or 3mm shorty works in Dampier Strait year-round.
Fin maps 54 sites in Dampier Strait (53 scuba diving sites and 10 snorkelling spots, with some suited to both), organised into 2 areas.
Observed species include Giant Moray, Napoleon Wrasse, Titan Triggerfish, Moorish Idol, and a strong variety of angelfish such as the Emperor Angelfish, Bluegirdled Angelfish, and Regal Angelfish. More patient divers may encounter Seahorse, Spotted Wobbegong, Peacock Mantis Shrimp, and Broadclub Cuttlefish. Manta Ridge off Mansuar Island is the site most associated with manta encounters. The overall species list is extensive.
Several sites are rated for beginners, including Mioskon, Ransiwor, Old Port Jefman, Saonek Monde, and Yenbuba Jetty. However, the majority of top sites, including Cape Kri, Cape Mansuar, and Sorido Wall, are rated intermediate, and Manta Ridge and Mike's Point are advanced. Beginners will find plenty to explore, but currents are a factor at many locations and should be discussed with operators before diving.
Kri Island holds the larger share of sites, including open-ocean pinnacles like Sardine Reef, the dramatic Sorido Wall, and the well-known Cape Kri. Mansuar Island offers its own character, with Cape Mansuar's wall-to-slope transition, the relaxed Ransiwor reef, and Manta Ridge for advanced drift divers. Both sub-areas are boat-access only, and each suits a slightly different style of diving.
Every site listed in Dampier Strait requires boat access. There are many operators active in the area, including Papua Explorers Dive Resort, Meridian Adventure Scuba Dive Resort and Marina, Raja Ampat Dive Lodge, and Mantastic Scuba and Lodge, among others. Liveaboard and resort-based day trips are both common ways to reach sites across Kri Island and Mansuar Island.
