scubadiverlife.com · Dive Guide
Supports low current, warm water, and broad visibility on deeper wrecks.
Dive Spot Guide•
San Francisco Maru
San Francisco Maru is Chuuk's deep WWII wreck for technical divers.
ScubaBoat EntryExpert
DeepWreck
Local operator required
The wreck is remote and technical, so a Chuuk operator or liveaboard is the practical way to organize the dive.
Boat-based technical wreck dive in Chuuk Lagoon with short transfers, little current, and a profile that demands conservative gas and decompression planning.
About San Francisco Maru
San Francisco Maru is Chuuk Lagoon's deep WWII cargo wreck, prized for the way its wartime cargo and structure still read like a submerged time capsule. The dive follows a long steel hull with tanks, trucks, munitions, and an intact engine room spread across a technical profile that rewards slow, planned exploration. It is a boat dive for experienced teams, with little current but enough depth and penetration risk that gas, time, and decompression need to be set before descent.
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Research Estimate At San Francisco Maru
Conservative baseline from public research. No community dives logged yet.
VisibilityVisibility: 20m
AccessDifficult access
Marine LifeAverage variety
FacilitiesBasic facilities
CrowdedFew visitors
Current StrengthNo current
Surge StrengthFlat calm
Where Is San Francisco Maru?
This spotNearby spots
Community sourced coordinates.
San Francisco Maru Planning Details
Depth range, seasonality, and planning context.
Reported Depth
50m - 65m
Depth Note
Chuuk sources place the wreck in the deep technical range, with the deck shallower than the hull and the masts well above the sand bottom.
Best Season
Year-round; lagoon conditions are generally stable, so operator logistics and dive planning matter more than seasonality.
Typical Conditions
Usually calm, warm lagoon water with little current; visibility is variable and the dive remains demanding because of depth rather than weather.
Safety & Access At San Francisco Maru
Hazards, restrictions, and access requirements.
Key Hazards
Restricted accessOverhead environment
Safety Notes
Accessible only to technical divers because of the depth.
Access Restrictions
Technical scuba only.
Legal Notes
Treat the site as a wartime wreck and avoid touching ordnance or artifacts.
Local Intel For San Francisco Maru
Community notes to help plan your visit.
Scuba
Plan a long technical wreck dive rather than a one-look pass. The bow cargo, bridge areas, holds, and stern sections can be split across separate dives if gas and deco limits allow.
Freedive
Not suitable for freediving; the wreck sits far beyond breath-hold limits and requires technical scuba planning.
Snorkel
Not suitable for snorkeling. The meaningful structure is far below the surface.
San Francisco Maru Dive Conditions Planner
Use the planner to scan this week, inspect today in local time, and understand how exposure shapes conditions at San Francisco Maru.
Current Snapshot
No data
🌥️Variable
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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 San Francisco Maru
Directional shelter context for incoming swell.
Exposure Note
Hourly forecast data is not available yet.
Wildlife at San Francisco Maru
Species commonly reported at this site, with direct links into their wildlife guides.
Recent Logged Visits At San Francisco Maru
Community dive logs and visit reports for this site.
No Dive Logs Yet
Be the first to log a dive at this spot and share your experience!
Dive Spot Log Averages At San Francisco Maru
Average conditions based on logged dives & visits.
Conditions
Avg. Visibility20m
Activity
No dive activity logged yet.
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San Francisco Maru Guide - Frequently Asked Questions
Planning answers for access, conditions, timing, and site logistics.
San Francisco Maru Guide - Sources and Updates
Last Updated
Research Sources
visitchuuk.com · Official Tourism
Supports the depth band, the Million Dollar Wreck nickname, and the lagoon's common marine life.
www.trukstop.com · Operator
Supports boat access, short transfer times, and local operator support.
xray-mag.com · Magazine
Supports the technical depth profile, preserved cargo, and caution around ordinance and decompression.
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