

Best for advanced divers, 8-18m, boat entry, strong current.
Zenisu is an offshore seamount located off the Izu Peninsula and Hachijojima, Japan. This drift dive site is situated in open water and is characterised by strong, consistent currents. The topography ranges from 8 to 18 metres in depth, with an average of 12 metres. Due to the exposed nature of the seamount and the potential for powerful water movement, this site is strictly for advanced divers with solid buoyancy control. Boat access is required, and divers must coordinate closely with their operator to manage entries and exits safely. Conditions can shift between dives, and there is no shelter or shore support available at this location.
33.94370, 138.81750
Confirm current timing and direction with your boat operator before the dive, as the flow at Zenisu can run hard enough to cut a drift short or make ascent difficult. Facilities are not fixed here, so check locally well in advance for what your charter provides.
Access info coming soon
Expected in this region. No sightings logged here yet.
Depth
8-18m
Skill Level
Advanced
Entry
Boat
Boat required
Water Temp
20-27°C
Current
Strong
Typical Dive
45 min
No, this site is intended for advanced divers only due to the strong currents and the requirement for precise buoyancy control in open water.
The site ranges from 8 to 18 metres, with an average depth of 12 metres.
Zenisu is an offshore seamount that requires boat access. There is no shore support at this location.
The main hazards are the strong currents and the depth. Divers must maintain close proximity to the boat during entry and exit to manage the current flow.
Diving at Zenisu in Central Japan requires the following certifications: Advanced. Always dive within your training limits.
A 5mm wetsuit is recommended for diving at Zenisu in Central Japan. Water temperatures range from 20°C to 27°C.
Zenisu in Central Japan can have strong currents. Advanced experience with drift diving and current navigation is recommended.