That statement just reeks of ignorance. You must not surf because all surfers espcially the older ones know how dangerous exposure to the sun is.
I have seen surfer friends die from this horrible cancer which is very deadly.
I have had two malignant melanomas removed.
One on my shoulder & one on my nose. Yes I lived at the beach for 25 years and surfed 3-4x a week. Never wore sunscreen for the first 10 years. You know that bronze surfer look with the red peeling nose & shoulders. Thought it looked cool.
Every avid surfer I know of who cares about themselves goes to the dermatologist 2x a year for a mold check. I did and that is what saved my life.
Yes the sun is good for us we would all die without it but surfers get huge doses of UV and make us high risk candidates.
This taken from
http://www.nssia.org/Safety_Rules.html
Which is the National Surf Schools & Instructors Association (NSSIA)