My pick for the best anchorage on the north side of Catalina, is Cabrillo Beach. This anchorage is best in a moderate westerly when you can tuck in bow and stern, like we are here, right up under Little Gibraltar with your stern anchor right in front of the rock islet. Then, you can watch the whitecaps roll past the point while you lay snug in flat water. Time for a swim! Ask me about the Anchoring At Catalina Cruise.
Drop the hook in front of the little islet, or tie off to the re-bar cemented in to it.
I've completed sonar logs and overlayed the data on aerial views of Catalina coves. We use this on the Anchoring at Catalina cruise, and are incorporating this in the new book.