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Scuba diving at Ship Rock in Catalina Island
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Ship Rock

GOOD
Catalina IslandBoat
About This Site
Ship Rock is a dramatic underwater pinnacle rising from the seafloor to within 15 feet of the surface, located about a half-mile off the isthmus of Catalina Island. This popular site features impressive walls, extensive kelp forests, and abundant marine life. The varied depth range and diverse underwater landscape make Ship Rock suitable for different experience levels, though conditions can be challenging at times.

Difficulty

Intermediate

Max Depth

40m

Type

Boat

Typical Visibility

12m

Conditions Summary

Best time today

7AM - 1PM

GREAT

Best day in forecast

Sunday

GOOD

2026-07-12

Community-reported visibility

n/a

Warnings for today

None

Steep mid-channel pinnacle near the Isthmus exposed to west and west-northwest energy running down the San Pedro Channel at near-full strength, including short-period afternoon wind chop. Rare north through north-northwest swell also arrives unimpeded. South through southwest energy is heavily shadowed by the island before it enters the channel, with only a weak residual wrapping to the rock, keeping it reliable during southern-hemisphere swells. The up-current side teems with life, while the lee offers a calm refuge.

NNEESESSWWNW
Protected
Partially Exposed
Exposed
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