We had 50° at the Caissons yesterday. Today we decided to dive shallower, so we hit the wreck of the Avalon and the Redondo Barge. The water at the Avalon was green and also 50° with a pretty hefty current running. The water over the barge was full of chunks in the brown surface water. After twenty feet the brown water turned to green, and finally cleared up around sixty feet. The clear water on the bottom was 49°. I can't wait for December so I can warm up.