Dive-site story
Resting upright on a sandy desert floor off the south coast of Oahu, this decommissioned harbor tug serves as an artificial reef. Divers can tour the exterior hull, peer into the wheelhouse, and inspect the open deck machinery where encrusting corals have taken hold. The relatively sheltered position inside Mamala Bay offers dependable visibility and manageable conditions on most mornings.
Intact harbor tug structure sitting fully upright on a flat sand bottom
Green sea turtles resting underneath the hull overhangs and stern deck
Wheelhouse and engine spaces easily observed from the outside
Schools of goatfish and snapper hovering above the wheelhouse roof
Location
Use the map to plan with your operator and confirm the exact entry point on the day.
Seasonality
South shore diving is possible year-round, though summer months can occasionally bring south swells.
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 | ||||||||||||
| Yellowstripe goatfishMulloidichthys flavolineatus | Common | ||||||||||||
| Giant morayGymnothorax javanicus | Common | ||||||||||||
| Commerson's frogfishAntennarius commerson | Rare |
Marine forecast
