Welcome Nicole,
A great group of divers that will get all the beach dives you wish for is the Beach Crabs
Check them out >> http://www.scubaboard.com/forums/beach-crabs/ << and join in the fun.
A great safer intro to So.Cal. "beach" diving is Casino Point @ Avalon. A bunch of us will be over there on July 12th if you and hubby wish to join in. Hope to see you in the water someday soon.
Nicole, Dave is right about Catalinas Casino Dive Park, it is a much easier introduction to diving in our local waters. You can dive at your leisure there and work on whatever skills you like without getting in anyones way. I really dont want to discourage you from Marineland but it is an advanced and strenuous dive.
If your heart is set on beach diving, Laguna also has some great spots that are not as physically demanding. My wife and I are planning a Laguna dive trip on Sunday.
If you would like some information on a local dive club (in Arcadia,) PM me and I will get you the information.
Your neighbor in Monrovia,