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Map of YO-257 & San Pedro Wrecks
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AdvancedBoat entry

YO-257 & San Pedro Wrecks

Hawaii, United States
AOW suggested18–31 m depthBoat entryRash guard or 2mm shorty typical

Boat dive — see Entry & access.

YO-257 & San Pedro Wrecks at a glance

YO-257 & San Pedro Wrecks is an advanced boat dive site in Hawaii, United States with depths of 18.3–30.5 m (60–100 ft). Typically most favorable Oct · from 3 years of archive data. Divers commonly see Moray eel (various species), Great barracuda, and Reef fish. Recent reports put the water around 27°C (81°F). Check the latest conditions and entry details before you go.

Marine model · graded 1h ago
1.4 mwaves — about a meter and a half expected

Tap a factor for its source and model point · Forecast 27°C · seasonal avg 27°C

Site hazards: Depth, current at surface, sharp wreck metal, entanglement, overhead/penetration risk, submarine/tour operations, boat traffic, and short no-decompression margin if both wrecks are explored deeply.

Read the full hazards ↓

Dive windows this week

Best: Sat
Fri8:00–19:00
Sat7:00–19:00
Sun7:00–19:00
Mon7:00–19:00
Tue7:00–19:00
Wed7:00–19:00
Thu7:00–17:00

Favorable windowModerate window— no window

First light 5:55 · Sunrise 6:17 · Sunset 18:38

Source: Open-Meteo marine · model point 4.5 km from site · graded 1h ago

Forecast only — always assess conditions on site.

Forecast · NOAA tide model

Tide & slack timing

Loading tide predictions

Recent diver reports

Dated firsthand observations from divers — not current conditions.

No diver reports for this site yet. — one dated observation helps every diver after you.

Dived here today — did the forecast match?

What Divers Say

Known for: Moray eel (various species), Reef fish, Green sea turtle
Best time: Diveable year-round with operator-selected conditions; May-September often offers peak visibility/calm seas.

Based on community reviews and site data. Conditions vary — always verify before diving.

Best months, historically

What conditions have historically been typical at this site, month by month — not a forecast.

  1. Jan9%25°C2.2 m
  2. Feb13%25°C2.1 m
  3. Mar30%25°C1.9 m
  4. Apr26%25°C1.8 m
  5. May31%26°C1.7 m
  6. Jun21%26°C1.7 m
  7. Jul13%27°C1.7 m
  8. Aug14%27°C1.7 m
  9. Sep26%27°C1.5 m
  10. Oct37%27°C1.6 m
  11. Nov18%26°C1.9 m
  12. Dec11%26°C2.0 m

October hastypically had the largest share of favorable days here. Conditions vary year to year — this is historical context, not a forecast.

Based on 3 years of archive data. Bar height shows the share of days each month whose conditions have historically scored favorably.

Marine life seen at this site

Species noted at this site — not a promise of what you’ll encounter.

Species seen here

The underwater calendar

When these animals are most recorded around Hawaiʻi — from open sighting data, not a promise.

Watch the whole year animate on the Migrations map

Fills & rentals nearby

Facts from OpenStreetMap, corrected by the community — listed by distance only. Details change; confirm with the shop.

Shop facts come from OpenStreetMap and community corrections, shown nearest first. PickADive lists facts and contacts only — no listing is sponsored or ranked.

Data updated July 2026

Site details

Advanced boat dive on two adjacent artificial-reef wrecks off Waikiki: the larger Navy yard oiler YO-257 and the smaller San Pedro fishing vessel. The pair is often dived as a dual-wreck route, with turtles, reef sharks, eagle rays, trevally/amberjacks, and a visible tourist submarine route. Penetration is possible only for trained divers and should remain guide- and conditions-dependent.

boatwreck

Depth, current at surface, sharp wreck metal, entanglement, overhead/penetration risk, submarine/tour operations, boat traffic, and short no-decompression margin if both wrecks are explored deeply.

Reviews

No reviews yet — this site is waiting for its first. Dived here? Your rating and a few lines help the next diver.

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