

Best for intermediate divers, 18-30m, boat entry, moderate current.
The Ryuko Maru is a Japanese wreck located in the waters of Koror and Babeldaob, Palau. Resting at depths between 18 and 30 metres, this site is accessible only by boat. Divers encounter moderate currents and visibility that fluctuates between 5 and 20 metres. The structure requires careful navigation due to entanglement risks, and divers should maintain a streamlined kit. Marine life recorded at the site includes wrasses, cardinalfish, Mandarinfish, Crab-eye Goby, Pacific Sailfin Tang, Blackback Anemonefish, Lagoon Triggerfish, rabbitfish, shrimp, and sea cucumbers. Given the depth and potential for low visibility, this site is best suited for intermediate divers.
7.34403, 134.44407
Entanglement is a real concern inside the structure, so carry a dive knife or line cutter and keep your kit streamlined before entering any penetration points. Visibility can drop with little warning, so maintain contact with your buddy and agree on a turn-pressure before the dive.
Located 1.5 miles from Koror, Palau.
Recorded at this site
Depth
18-30m
Visibility
5-20m
Skill Level
Intermediate
Entry
Boat
Boat required
Water Temp
28-30°C
Current
Moderate
Typical Dive
60 min
Divers regularly record wrasses and cardinalfish at the site. Other species observed include Mandarinfish, Crab-eye Goby, Pacific Sailfin Tang, Blackback Anemonefish, Lagoon Triggerfish, rabbitfish, shrimp, and sea cucumbers.
No, the Ryuko Maru is rated for intermediate divers due to the depth, moderate currents, and the need for wreck navigation skills.
The wreck sits at depths ranging from 18 to 30 metres, with an average depth of 23 metres.
No, the site is located 2400 metres from shore and requires a boat for access.
The main hazards are entanglement risks within the wreck structure and shifting visibility, which can drop to 5 metres.
Diving at Ryuko Maru in Koror requires the following certifications: Open Water, Wreck. Always dive within your training limits.
A rashguard or 2mm shorty is recommended for diving at Ryuko Maru in Koror. Water temperatures range from 28°C to 30°C.
Expect moderate currents at Ryuko Maru in Koror. Good buoyancy control and some drift diving experience is helpful.
Visibility at Ryuko Maru in Koror typically ranges from 5 metres to 20 metres. Conditions vary with weather, tides, and seasons.