Castle Rock
Protected Area
Farnsworth Offshore (Catalina Island) State Marine Conservation Area
Why dive here
Castle Rock is a reef dive in California, United States. Water ranges 14-21°C, warmest July, August, September.
Castle Rock, off the California coast, offers a solid shore dive when conditions are right. We've often found it's a good spot to check out the local kelp forests and the creatures that live there, like garibaldi and an occasional cabezon. It's a fairly straightforward dive, making it suitable for newer divers looking to get comfortable in temperate waters, provided the surge isn't too strong.
Typical Castle Rock Dive Profile
Illustrative profile based on site depth and type. Actual dive profiles vary - always follow your dive computer and training.
Nearest Dive Centres to Castle Rock
Dive shops near Castle Rock
Kelp Forest
Ron Moore's Dive Catalina
Catalina Divers Supply & Snorkeling
Catalina Scuba
Reviews for Castle Rock
Conditions
Ocean conditions, forecast and tides for Castle Rock
Castle Rock Ocean Conditions
Monthly averages for Castle Rock, sourced from NOAA NDBC buoy data - nearest station: Topanga Nearshore, CA (103) (221km away)
October Averages
Sea Temperature
19°C
66°F · Range: 14–23.7°C
Air Temperature
18°C
65°F
Wave Height
0.6m
13.8s period
Based on 4 years of monitoring data · Data sources: NOAA NDBC buoy data
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