Operator wreck page with access, depth, and visibility details.
SMS Cormoran is a historic deep wreck dive.
SMS Cormoran is a historic deep wreck dive.
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Boat access, mooring, and deep-wreck planning make local operator support the normal path.
Deep boat wreck in Apra Harbor where the WWII Tokai Maru and the WWI SMS Cormoran sit side by side. The draw is the combination of history, wreck structure, and macro life: you move along intact hull sections, find coral and tunicate growth, and get a rare chance to visit two historic wrecks in one dive. This is a guide-led wreck dive for experienced scuba planning rather than a casual sightseeing run.
Conservative baseline from public research. No community dives logged yet.
Depth range, seasonality, and planning context.
Reported Depth
24.4m - 39.6m
Depth Note
Deep wreck with the Cormoran reached first from the Tokai Maru side.
Best Season
Year-round, with calmer harbor windows preferred.
Typical Conditions
Deep wreck dive in harbor water, with visibility that can vary by tide and ship traffic and a route that follows the Tokai Maru side first.
Hazards, restrictions, and access requirements.
Key Hazards
Safety Notes
Deep wreck environment. Use appropriate training, gas planning, and wreck awareness; follow guide direction around openings and superstructure.
Access Restrictions
Boat access only; this is an advanced wreck dive that should be run with a local operator familiar with Apra Harbor.
Legal Notes
Historic wreck in Apra Harbor; follow harbor and site rules.
Community notes to help plan your visit.
Scuba Diving
A deep wreck dive where two historically significant wrecks can be visited in one dive.
Freediving
Not suitable; this is a deep scuba wreck dive.
Snorkeling
Not suitable; the site is too deep for casual snorkeling.
Species commonly reported at this site, with direct links into their wildlife guides.
Community dive logs and visit reports for this site.
Average conditions based on logged dives & visits.
Planning answers for access, conditions, timing, and site logistics.
Last Updated
Research Sources
Operator wreck page with access, depth, and visibility details.
National Park Service article covering the scuttling and historical context.
Official Guam tourism page for the historic SMS Cormoran dive site.
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