YO-257

Hawaii, United States

Depth

28m

Visibility

8m - 23m

Entry

Boat

Experience Level

Experienced

YO-257

Hawaii, United States

Depth

28m

Visibility

8m - 23m

Entry

Boat

Experience Level

Experienced

About YO-257

The old navy oiler at this site was intentionally sunk by the Atlantic Submarine Company in 1989. There is another wreck, the San Pedro, only 30m away.

YO-257 Dive Info

Terrain & Features

Wreck

Entry Type

Boat

Max Depth

28m

Visibility Range

8m – 23m

Experience Level

Experienced

Best Gas Mix

21% – 37%

O₂

CNS Load (25 min)

14% at 26m / 36%

O₂

Multi-Level Dive Planner

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Marine Life

Various

Weather Conditions

Weather information for YO-257 coming soon.

Dive Operators near YO-257

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Location

Dive Site Hazards

Deceptive Entry Openings — Openings may become restrictive inside due to angle, collapse, or corrosion.
Surge-Induced Internal Silt Shift — Internal surge can move silt and debris without direct contact.
Partial Overhead Environment — Many wrecks limit direct ascent even without full penetration.

Fine Rust Particle Silt-Out — Disturbed rust particles can rapidly reduce visibility.

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