I thought since all the surfers were wearing wetsuits the water might be too cold for sharks, but then I don't know anything about surfing (or sharks), so don't mind me.Thanks! Yeah, well there are sharks anywhere...just such low odds of an attack that no one thinks much about it. About 1000x more likely getting in a fatal car wreck driving to the beach. There are Great Whites about, especially in the areas where the sea lions feed and breed, mostly a bit north of Santa Cruz in Año Nuevo and the Farallons.
It's Pigeon Point lighthouse on the way north from Santa Cruz, on the San Mateo coast. https://goo.gl/maps/1fhh9Frb7LUfs1uH9
Here in Oregon the beaches are gorgeous, but the water is just too cold, so we don't even have to worry about swimming with sharks. About the most you can do is dip your feet into the ocean, and the ocean is nice to look at. Think I still have some piccys of it somewhere.