diver-online.com · Dive Guide
Point-specific depth ranges and drop-off profiles.
Dive Spot Guide•
Tobishima
Tobishima: remote offshore boat dives with clear water.
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PinnacleReef
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Local operator required
The offshore points are reached by local boat after ferry access to Tobishima, so an operator is the practical way to dive here.
Boat from Sakata to exposed island sites with drift potential, protected coral habitat, and strong pelagic life; plan for weather windows and self-sufficient dive ops.
About Tobishima
Tobishima is a remote offshore dive area off Sakata where boat trips reach exposed island points around Ozakijima. The appeal is a mix of volcanic terrain, clear seasonal water, protected coral habitat, and boat-friendly drift conditions that bring seasonal sharks, tuna, and other schooling fish. It suits divers who can manage changing weather, current, and deeper profiles with solid gas and surface-marker discipline.
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Research Estimate At Tobishima
Conservative baseline from public research. No community dives logged yet.
VisibilityVisibility: 15m
AccessChallenging entry effort
CoralHealthy coral
Aquatic LifeGreat variety
FacilitiesBasic facilities
CurrentModerate current
Where Is Tobishima?
This spotNearby spots
Community sourced coordinates.
Tobishima Planning Details
Depth range, seasonality, and planning context.
Reported Depth
5m - 30m
Depth Note
Published point descriptions run from shallow ledges to about 30 m on the deeper drop-off dives.
Best Season
Late spring through autumn, with spring shark action, summer pelagics, and clearer late-summer and autumn water.
Typical Conditions
Ordinary conditions are clear in season, with drift potential and better late-summer and autumn water quality.
Safety & Access At Tobishima
Hazards, restrictions, and access requirements.
Key Hazards
Restricted accessStrong current
Safety Notes
This is a remote offshore site with boat access, changing current, and deeper profiles; use proper surface support, SMB, and gas discipline.
Access Restrictions
Boat access only for the main sites; ferry access to Tobishima and local operator coordination are required.
Legal Notes
Parts of Tobishima and its coral habitat sit within protected designations; respect access rules, breeding areas, and local operator guidance.
Local Intel For Tobishima
Community notes to help plan your visit.
Scuba Diving
Boat and drift diving are the norm, with deeper drop-off profiles at some points and SMB use expected on moving-water days.
Freediving
Freediving is only realistic in the calmest, shallowest windows and with local guidance; the main sites are more scuba-oriented.
Snorkeling
Snorkeling is limited to calm nearshore windows; the main draw is the boat-accessed dive terrain rather than a long sheltered snorkel line.
Tobishima Dive Conditions Planner
Use the planner to scan this week, inspect today in local time, and understand how exposure shapes conditions at Tobishima.
Current Snapshot
No data
🌥️Variable
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Sunset
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Surface / Entry
Wind No data · Tide No data
Sea State
Swell No data · Period unavailable
Visibility Outlook
Rain chance No data
Wind
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Swell
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Exposure Profile at Tobishima
Directional shelter context for incoming swell.
Exposure Note
Hourly forecast data is not available yet.
Wildlife at Tobishima
Species commonly reported at this site, with direct links into their wildlife guides.
Recent Logged Visits At Tobishima
Community dive logs and visit reports for this site.
No Dive Logs Yet
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Dive Spot Log Averages At Tobishima
Average conditions based on logged dives & visits.
Conditions
Avg. Visibility15m
Activity
No dive activity logged yet.
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Tobishima Guide - Frequently Asked Questions
Planning answers for access, conditions, timing, and site logistics.
Tobishima Guide - Sources and Updates
Last Updated
Research Sources
sakata-kankou.com · Official Tourism
Island overview, access context, and limited amenities.
scuba-monsters.com · Dive Directory
Boat/drift style, current, seasonality, and marine life.
www.city.sakata.lg.jp · Official Tourism
Clear water, coral colonies, sharks, and island context.
www.divingpoint.net · Dive Directory
Visibility baseline and seasonal fish summary.
www.jalan.net · Operator
Local dive school, ferry logistics, and beginner support.
www.pref.yamagata.jp · Official Conservation
Protected coral habitat and designated natural monument status.
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