Back

YO-257 & San Pedro

FAIR

About This Site

YO-257 is a sunken Navy oiler off Waikiki, now an artificial reef teeming with life. This wreck dive offers swim-throughs and historical intrigue, perfect for advanced divers.

Difficulty

Advanced

Max Depth

100 ft

Type

Boat

Typical Visibility

100 ft

Conditions Summary

Best time today

5 PM - 9 PM

GOOD

Best day in forecast

Sunday

GOOD

2025-04-27

Community-reported visibility

n/a

Warnings

No warnings for today

Nearby Dive Sites

Sharks Cove Yokohama Bay Makaha Caverns Electric Beach Hanauma Bay Turtle Canyon YO-257 & San Pedro

Dive Conditions Forecast

12:00 am

Poor

(4/10 Points)

Entry & Exit

FAIR

Surge

FAIR

Impact on Viz

Impact on Visibility

POOR

Wave Data

12:00 am

3.8

Rating:

BAD

Period:13s

Direction:WSW (257°)

Wind Data

12:00 am

12.0

mph

Rating:

GREAT

Direction:E (80°)

Primary Swell Data

12:00 am

1.9

Rating:

FAIR

Period:8s

Direction:ESE (111°)

Secondary Swell Data

12:00 am

1.2

Period:8s

Direction:S (172°)

Tide Information

12:00 am

1.4

Rating:

BAD

Type:FALLING

Low Tide

0.5 ft

5:31 am

High Tide

0.5 ft

8:50 am

Low Tide

0.4 ft

1:04 pm

High Tide

1.9 ft

9:52 pm

Dive Site Guide for YO-257 & San Pedro

Entry & Exit

Entry via boat with a controlled descent to the wreck; exit by ascending to the boat.

Access

Boat dive only, departing from Honolulu or Waikiki harbors.

What You'll See

Green sea turtles, reef fish, eagle rays, and occasional sharks.

Underwater Topology

The wreck sits upright on a sandy bottom with open swim-throughs and encrusted surfaces.

Parking

Parking available at Honolulu harbors or near dive shop lots for boat trips.

Facilities

Boat facilities include gear storage; harbors have restrooms and shops.

Crowd Factor

Low to moderate, as the advanced nature and boat-only access limit divers. Popular with wreck enthusiasts, but rarely overcrowded.

Look Out For

Depth requires careful air management. Currents can be strong near the wreck. Visibility typically good but can drop with sediment disturbance. Watch for boat traffic overhead.

How to Find It

As a boat dive, access is from Honolulu or Waikiki harbors. From Honolulu, take Ala Moana Boulevard toward Waikiki, then follow signs to Kewalo Basin or Ala Wai Harbor. Parking is available near dive operator lots.

Dive Reports

Latest Dive Reports

No dive reports for this site yet

Be the first one to share your experience and help the community.

Live Cameras

Coming Soon

We're working on integrating live camera feeds in the area to help you check conditions before your dive.