Guam dive-center site listing Tokai Maru as a deep wreck that is better accessed by boat.
Tokai Maru is Guam's historic deep wreck.
Tokai Maru is Guam's historic deep wreck.
Tokai Maru is Guam's deep Apra Harbor wreck, a boat-access dive where the Japanese freighter rests beside the SMS Cormoran in one of the world's rare paired-warship sites. Divers approach it as a careful wreck lap with strong buoyancy control, where the hull, adjacent wreck structure, and the harbor floor create an advanced dive that is as much about history and positioning as it is about marine life.
Depth range, seasonality, and planning context.
Reported Depth
40m
Depth Note
Reported depth is 130 ft.
Best Season
Year-round, with Guam's dry season from January to May usually the easiest for planning.
Typical Conditions
Deep wreck dive in Apra Harbor with a paired historical site, harbor water, and wreck structure that rewards a controlled lap.
Hazards, restrictions, and access requirements.
Key Hazards
Safety Notes
This is a deep wreck dive; plan gas, limits, and ascent accordingly.
Access Restrictions
Boat only; this is a deep wreck dive suited to advanced certification and careful gas planning.
Legal Notes
The wreck pair is part of Guam's protected historic dive heritage and should be treated with the usual care for a registered site.
Community notes to help plan your visit.
Scuba Diving
A wreck dive to around 40 m/130 ft alongside the Coromoran wreck.
Freediving
Not a casual freedive site because the wreck is deep and the historic structure is best handled with scuba.
Snorkeling
Not a snorkel site; the wreck sits deep enough that it is best treated as a scuba-only dive.
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
Guam dive-center site listing Tokai Maru as a deep wreck that is better accessed by boat.
Guampedia history page describing the Tokai Maru alongside the Cormoran.
Guam wreck operator page with the Tokai Maru depth, visibility, and contact with Cormoran.
Official Guam tourism article on the Tokai Maru and Cormoran wrecks.
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