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Dive-center overview for Yonaguni and Hammerhead Rock.
Dive Spot Guide•
Hammerhead Rock
Yonaguni drift dive for hammerheads and big pelagics.
Open-water drift site off Yonaguni with vertical rock formations, swift current, and regular hammerhead action.
About Hammerhead Rock
Hammerhead Rock is a boat dive off Yonaguni in Japan, known for schools of hammerhead sharks and other large pelagics. The site is defined by vertical rock formations that rise from the seabed and by open-water drift conditions that make timing and guide discipline important. It is a classic specialty dive for experienced divers rather than a casual reef stop.
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Research Estimate At Hammerhead Rock
Conservative baseline from public research. No community dives logged yet.
VisibilityVisibility: 50m
AccessSimple entry
CoralSome damage
Aquatic LifeExceptional variety
FacilitiesBasic facilities
Crowd / PopularityModerate
CurrentStrong current
SurgeFlat calm
Where Is Hammerhead Rock?
This spotNearby spotsExplore nearby spots on the map
Community sourced coordinates.
Hammerhead Rock Planning Details
Depth range, seasonality, and planning context.
Reported Depth
35m
Depth Note
Vertical rock formations rise from the seabed in the deep open-water zone.
Best Season
Late autumn through early spring
Typical Conditions
Swift drift diving with blue water and long views.
Safety & Access At Hammerhead Rock
Hazards, restrictions, and access requirements.
Key Hazards
Strong current
Safety Notes
The site is deep, current-prone, and centered on large-shark encounters, so appropriate training, gas planning, and situational awareness matter.
Access Restrictions
Boat access and guided drift timing are standard.
Legal Notes
Follow local operator instructions and dive-briefing limits.
Local Intel For Hammerhead Rock
Community notes to help plan your visit.
Scuba Diving
A deep open-water scuba dive centered on vertical rock formations and hammerhead encounters.
Freediving
Not a freedive-first site; the hammerhead zone is better handled on scuba.
Snorkeling
Not a casual snorkel site; the action is deeper and current-driven.
Wildlife at Hammerhead Rock
Species commonly reported at this site, with direct links into their wildlife guides.
Recent Logged Visits At Hammerhead Rock
Community dive logs and visit reports for this site.
Dive Spot Log Averages At Hammerhead Rock
Average conditions based on logged dives & visits.
Conditions
Avg. Visibility50m
Activity
No dive activity logged yet.
