Dive-site story
Resting off the south shore of Oahu, this signature twin-wreck dive features the YO-257, a former United States Navy yard oiler, and the nearby San Pedro, a decommissioned coastal steamer. Both vessels were intentionally sunk to form artificial reefs and now attract significant pelagic and reef fauna. Divers frequently swim between the two wrecks along a sandy channel, often crossing paths with the Atlantis tourist submarine that frequents the area.
Exploring the spacious open swim-throughs and wheelhouse of the upright YO-257
Green sea turtles resting in sheltered crevices on both hulls
Surprise encounters with white-tip reef sharks schooling along the wreck shadows
Watching the passenger submarine cruise past the dive site
Location
Use the map to plan with your operator and confirm the exact entry point on the day.
Seasonality
Summer and early autumn typically bring calmer southern ocean swells and optimal underwater visibility.
Marine life
| Species | Likelihood | J | F | M | A | M | J | J | A | S | O | N | D |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Green sea turtleChelonia mydas | Common | ||||||||||||
| Whitetip reef sharkTriaenodon obesus | Common | ||||||||||||
| Spotted eagle rayAetobatus narinari | Seasonal | ||||||||||||
| Yellow tangZebrasoma flavescens | Common | ||||||||||||
| FrogfishAntennariidae | Rare |
Marine forecast
