Yo man.
So volleyball is still on, starts at 11, I'll be there then, probably bailing for a couple hours in the middle though, if you roll to the beach txt me and I'll let you know if I'm there. We play about 50 yards south of Tower 22, the volleyball poles are bright orange/yellow and say SCHOOL down them. If you see a court named THE OFFICE, we are the next one south. Its basically at Ocean Front Walk and Yarmouth Ct.
Carmell valley is north east of here, 30 mins or so maybe, with traffic on the weekends could be more. Much hotter out there, probably 10-20 degrees warmer than the beach areas will be. If its a pool party or something, I'd say go for it. Not sure what else you'd be doing out there though.
I've been to the Avalon pool, its nice, great scenery, I think I mentioned, I dated a chick that lived there about 5 or so years ago, she was 22, just out of college at USD. I remember going there thinking that being see at the pool with her was cock blocking me from like 20 chicks all at one shot!