Depth, visibility, season, and marine life.
Advanced Waikiki wreck dive with turtles, rays, and sharks.
Advanced Waikiki wreck dive with turtles, rays, and sharks.
Boat handling and wreck guidance are part of the site, especially because the wreck sits offshore from Waikiki.
YO-257 is an old Navy oiler turned artificial reef just off Waikiki, resting upright on the sand at advanced wreck depth. The cut-outs make it a distinctive wreck to explore, and the draw is the mix of structure, coral growth, turtles, rays, and reef sharks. It is a boat dive first and foremost, with surface current and offshore conditions making it a site for trained divers rather than casual sightseeing.
Conservative baseline from public research. No community dives logged yet.
Depth range, seasonality, and planning context.
Reported Depth
29m - 30m
Depth Note
Sources place the wreck around 95 to 100 ft, with the top of the wreck near 85 ft and the sand near 100 ft.
Best Season
Year-round, with May to September usually offering the best visibility and calmer conditions.
Typical Conditions
An upright wreck at about 95 to 100 ft with cut-outs, a mooring line, and offshore conditions that can bring strong surface current.
Hazards, restrictions, and access requirements.
Key Hazards
Safety Notes
Treat the wreck as an advanced dive, stay with your guide, and only enter the interior if your training and conditions allow it.
Access Restrictions
Boat access only, with wreck training recommended before any penetration and a strong awareness of surface current.
Legal Notes
Follow mooring-line and wreck-penetration rules, and avoid overhead exploration unless it is within your training and the guide approves it.
Community notes to help plan your visit.
Scuba Diving
A classic advanced wreck dive with cut-outs, big structure, and the option for limited penetration if trained and approved.
Freediving
This is not a freedive site; the wreck sits too deep and requires scuba equipment and wreck awareness.
Snorkeling
Snorkeling is not appropriate here because the wreck sits far below the surface.
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
Depth, visibility, season, and marine life.
Year-round Oahu water-activity context.
Artificial-reef context and species notes.
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