YO-257 & San Pedro Wrecks
Two wrecks, one epic dive. Explore these iconic WWII and commercial vessels side by side, 95–100 ft beneath the waves off Waikiki.
Advanced dive with turtles, eagle rays, reef sharks, and back-to-back history.
Quick Facts
📍 Location: South shore of Oʻahu, near Waikiki Beach
🌊 Depth: YO-257: 100 ft • San Pedro: 95 ft
🔦 Visibility: Often 80–100 ft
🎯 Experience Level: Advanced
🐠 Marine Life: Turtles, eagle rays, reef sharks, mackerel scad, trevally, amberjacks
Just 100 feet apart, the YO-257 and San Pedro offer a rare opportunity to dive two wrecks in one trip — making this one of Oʻahu’s most thrilling underwater experiences for advanced divers.
YO-257 – Naval Power Reimagined
A former Navy Yard Oiler, the YO-257 served in WWII and the Korean War before being intentionally sunk in 1989. Today, it’s a towering artificial reef covered in coral and marine life.
Swim through open corridors, explore the main deck, and watch reef sharks and trevally patrol its shadows.
San Pedro – Fishing Vessel Turned Reef Haven
Sunk in 1996 as part of Atlantis Submarines’ reef project, the San Pedro is a smaller wreck, but full of life. Turtles, eagle rays, and amberjacks are frequent visitors, and the site is ideal for wide-angle photography and mellow exploration.
❓FAQs: YO-257 & San Pedro Wrecks
How deep are these wrecks?
📏 The YO-257 sits at 100 ft, and the San Pedro lies at 95 ft — both ideal for advanced divers
What marine life can I expect to see?
🐟 These wrecks attract:
Turtles, eagle rays, reef sharks
Mackerel scad, trevally, amberjacks
What’s the visibility like?
👀 Visibility is typically 80–100 ft, with the clearest conditions in summer.
Can beginners do this dive?
⚠️ This dive is best for advanced or experienced divers Confident beginners may explore the exteriors under close supervision.
Is penetration allowed?
✅ Limited penetration is possible on the YO-257, with clear corridors and large open spaces. Dive Oʻahu will advise based on your training.
When is the best time to dive these wrecks?
🌞 These sites are accessible year-round, but May–September offers optimal visibility and calmer conditions.