Hammerhead Rock
About Hammerhead Rock
Hammerhead Rock is a dive site near Japan’s westernmost island, known for a high chance of encountering hammerhead sharks. The signature feature is a set of rock formations that rise vertically from the seabed, creating a dramatic underwater landscape around 35 m. The site is also frequented by large pelagic fish, with reports of tuna, schools of trevally, barracuda, and occasional sightings of whale sharks and dolphins.
Where Is Hammerhead Rock?
Hammerhead Rock Planning Details
Depth range, seasonality, and planning context.
Reported Depth
35m+
Depth Note
Vertical rock formations are described as rising from the seabed at around 35 m.
Safety & Access At Hammerhead Rock
Hazards, restrictions, and access requirements.
Key Hazards
Safety Notes
Depth around 35 m and large-shark encounters call for appropriate training, gas planning, and situational awareness.
Local Intel For Hammerhead Rock
Community notes to help plan your visit.
Scuba
A deeper scuba dive centered around vertical rock structures at roughly 35 m and pelagic encounters.
Hammerhead Rock Dive Conditions Planner
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Exposure Profile at Hammerhead Rock
Directional shelter context for incoming swell.
Recent Logged Visits At Hammerhead Rock
Community dive logs and visit reports for this site.
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Dive Spot Log Averages At Hammerhead Rock
Average conditions based on logged dives & visits.
Hammerhead Rock Guide - Sources and Updates
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