Literally grew up on the beach in the 50s and 60s, surfed for about 50 years, beach VB, etc. Many years ago a very well respected dermatologist I was using told me..." all the years in the sun have done their damage already, if you lived in a cave the rest of your life, you will still develop skin cancers". I had a few mild ones, stay covered up skiing and sailing, but go the doc twice a year.