In article ,
says...

http://www.ktvu.com/gallery/sports/i...gCHGB/#4436304

This is just to the north of the harbor I normally launch out of. In July,
the ocean is 45' deep and calm at the reef break.

We used to body surf waves twice that high at Barbars Point in Hawaii! Not twice that height,
more like 6 to 8 feet high.