Local boat schedule and dive-shop infrastructure.
Deep WWII wreck dive in Apra Harbor for experienced divers.
Deep WWII wreck dive in Apra Harbor for experienced divers.
A local operator is the practical default for the boat run and wreck briefing.
Japanese Salvage Tug (Wreck) is a WWII wreck dive in Apra Harbor that rewards experienced divers with a classic deep-boat profile, broken steel structure, and open-water circuiting around one of Guam's best-known history sites. It is a wreck-first dive rather than a penetration site, so the planning focus is on clean buoyancy, gas management, and a calm boat run from the harbor.
Conservative baseline from public research. No community dives logged yet.
Depth range, seasonality, and planning context.
Reported Depth
35m - 40m
Depth Note
The wreck lies around 40 m deep, with the deck around 35 m and penetration discouraged because the vessel is deteriorated.
Best Season
April to August
Typical Conditions
Warm harbor water, calmer seas in the late spring and summer window, and a steady deep-wreck profile.
Hazards, restrictions, and access requirements.
Key Hazards
Safety Notes
Treat it as a no-penetration wreck and keep buoyancy tight around the structure. Use the gas planning your operator recommends for a deep dive.
Access Restrictions
Best for advanced divers; the wreck is deep, boat-based, and not recommended for penetration.
Legal Notes
Follow operator briefing and avoid entering the wreck interior unless you are specifically trained and guided to do so.
Community notes to help plan your visit.
Scuba Diving
A deep wreck dive for experienced divers who want a careful, open-water circuit rather than interior penetration.
Freediving
Not a freedive target because of the depth and boat-based wreck profile.
Snorkeling
Not a snorkel site; this is a deep scuba wreck.
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
Local boat schedule and dive-shop infrastructure.
Apra Harbor visibility range and calmest-month baseline.
Guam Visitors Bureau dive-history overview and Apra Harbor context.
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