Coronado
One word comes to mind for me-Coronado.
The Coronado Beach Resort while not on the beach is very close to it. Easily walkable. Coronado is a little quiet but San Diego is right across the bay.
Closer to LA are the Carlsbad timeshares. Again not on the beach but nearby.
Tough to trade into in July. All go through RCI. You will need lots of TPU's. My GPP week 27 2 bedroom got me 51 TPU's. I assume it would take all or most of that to get in there. A 2 bedroom at Coronado in December cost me 38 TPU's.
If you have a strong trader in II look at Marriott Newport Villas. I have been there but never stayed. It too is a great location. The resort is very nice.
If you are in Southern California in July go to the Pageant of Masters in Laguna Beach.
http://www.foapom.com Real people recreating art on the stage with an orchestra playing. It is unique. My children ages 15, 12, and 9 look forward to going every year. My wife and I love it too. In years past you had to book early-and you still do for the best seats-but in this economy you can buy seats at the last minute. This is a real treat.
DAman