Freezing

I recently went on a family trip with my family to California. We went camping with some old friends and it was around Morrobay. I cant belive the water there is so dam cold and how do you guys survive those temperatures
. I'm not sure how cold it was but dam when I first put my feet into the water and jumped it I thought I was going to die. No wonder I see everyone there surfing wearing a wetsuit lol.
