Best for beginner divers, 3-10m, shore entry, mild current.
Okishima is a unique freshwater dive site located on Japan's only inhabited island within a freshwater lake. Divers typically access the water from the shore, exploring depths ranging from 3 to 10 metres with an average of 7 metres. The site features a silty bottom and requires awareness of boat traffic and cold water conditions. Visibility can be low, and currents are generally mild. The site is well-supported by local facilities, including a dive shop, equipment rental, air fills, and boat charter services. Divers can expect a typical dive duration of 40 minutes in this distinct freshwater environment.
35.20381, 136.05466
Okishima is a rare inhabited island on a lake, known for its Showa-retro atmosphere and local cats.
Access is available via cruise services operated by Biwako Kisen.
Expected in this region. No sightings logged here yet.
Depth
3-10m
Skill Level
Beginner
Entry
Shore
Current
Mild
Typical Dive
40 min
Yes, the site is rated as suitable for beginner skill levels.
The depth ranges from 3 to 10 metres, with an average depth of 7 metres.
The site is accessed from the shore, located 1500 metres from the island.
Divers should be aware of boat traffic, cold water, low visibility, and a silty bottom.
Yes, the site offers parking, toilets, showers, changing rooms, a rinse station, air fills, equipment rental, a cafe, first aid, a dive shop, and boat charter services.
Diving at Okishima in Omihachiman requires the following certifications: Open Water. Always dive within your training limits.
Yes, equipment rental is available at or near Okishima in Omihachiman. Contact local dive operators for specific gear availability and prices.
Okishima in Omihachiman typically has mild currents that most divers can handle comfortably.
