

Best for advanced divers, boat entry, strong current.
Ot Di Ma is a reef-based drift dive located off Kri Island, Indonesia. This site is strictly for advanced divers due to the strong currents that define the experience. Divers must be proficient in buoyancy control and reading water movement to navigate the reef effectively. Access is by boat only, and there are no shore entry options. Visibility typically ranges from 10 to 30 metres, with water temperatures remaining between 29 and 30 degrees Celsius. Before entering the water, it is essential to confirm current direction and timing with the boat crew and establish a clear exit strategy. Facilities are not confirmed, so divers should arrive fully prepared.
-0.52977, 130.63855
Check current direction and timing with your boat crew before entering, as conditions at Ot Di Ma can shift and positioning your entry correctly makes a significant difference to the dive. Facilities are unconfirmed, so bring everything you need from your liveaboard or base.
Trips begin in Sorong, West Papua, via Domine Eduard Osok Airport. Transfers to resorts or liveaboards involve ferry or speedboat.
Recorded at this site
Visibility
10-30m
Skill Level
Advanced
Entry
Boat
Boat required
Water Temp
29-30°C
Current
Strong
Best Time
Jan, Feb, Mar, Apr, Oct, Nov, Dec
No, this site requires advanced certification due to the strong currents present.
Ot Di Ma is a boat-access site only; there is no shore entry available.
The primary hazard is the strong current. Divers should stay close to the reef for shelter if the current becomes unmanageable and maintain constant communication with the boat crew.
Visibility at this site typically ranges between 10 and 30 metres depending on conditions.
Diving at Ot Di Ma in Sorong requires the following certifications: Advanced. Always dive within your training limits.
A rashguard or 2mm shorty is recommended for diving at Ot Di Ma in Sorong. Water temperatures range from 29°C to 30°C.
The best months to visit Ot Di Ma in Sorong are January, February, March, April, October, November, and December. Conditions outside these months can still be good but are less predictable.