I've been diving Crescent for many years, because this site has a lot to offer. Deadmans reef, Seal Rock and Pinnacles are more advanced type dives but can be done by less experienced divers, as long as they are accompanied by more experienced divers who have dived this area before. Average vis. in winter is approx. 15ft with avg. temps around 55 degrees. I have experienced 50ft vis and temps in the mid 60's. Like most good dive sites in Southern California, you need to go to the beach and check the conditions for your self! I would have missed out on some great diving had based my decision to dive solely on dive reports from local shops and or publications, etc. If you're in need of a buddy, there are several great dive clubs in the local area that welcome new divers of all levels of experience with open arms. You don't even have to become a member to dive with the clubs, in most cases.