Best for intermediate divers, 10-18m, boat entry, mild current.
Ryuodo is a cave and reef system in Japan offering dives between 10 and 18 metres. The site is accessible only by boat and is suited for intermediate divers. Visibility fluctuates between 5 and 20 metres, and while currents are generally mild, they can become strong. Divers should remain aware of these shifts and stay close to the boat. Water temperatures vary significantly throughout the year, ranging from 11 to 25 degrees Celsius, requiring appropriate thermal protection. Guided tours are available through local dive shops to assist with navigation through the cave structures and management of depth transitions.
37.80390, 138.25220
Despite the generally mild current, conditions can shift quickly, so check with the local dive shop before your dive and follow your guide's briefing on the hazards. Water temperature swings between 11 and 25 degrees Celsius across the year, so carry a wetsuit appropriate for the season.
Located in Kotoura, Sado. It is a 1-minute walk from the Kotoura bus stop on the Ogi Line.
Expected in this region. No sightings logged here yet.
Depth
10-18m
Visibility
5-20m
Skill Level
Intermediate
Entry
Boat
Boat required
Water Temp
11-25°C
Current
Mild
Typical Dive
45 min
The site has an average depth of 15 metres, with a range between 10 and 18 metres.
No, this site is rated for intermediate divers due to the cave environment and the potential for strong currents.
Ryuodo requires boat access, and guided tours are available through local dive shops.
Visibility ranges from 5 to 20 metres. Currents are typically mild but can become strong, requiring careful monitoring.
Diving at Ryuodo in Ogi requires the following certifications: Open Water. Always dive within your training limits.
A 7mm wetsuit or semi-dry is recommended for diving at Ryuodo in Ogi. Water temperatures range from 11°C to 25°C.
