I second the recommendation of Orange Coast College's sailng program. I live in Redodndo Beach and got all of the ASA certifications, but to get more cruising experience and gain more skills and local knowledge, we take seminars and multi-day cruising classes
through OCC. Definitely excellent learning
experiences: 3 day Anchoring
in Catalina cruise
you'll learn the particulars of every cove on the Island in various conditions and learn how to set, test and raise stern/bow anchors. 5-day Northen Channel Islands cruise
includes an overnight w/watches, more anchoring
, info on all of,the islamds in various conditions. Great prep for independent cruising in bluish water.