TRumpy: Basically, like Big Jim says, wear a hat. Sunscreen is handy sometimes, but perspiring a lot defeats that.
Personally, I wind up with a tan quickly, and I spend as much time as I can on my boat,hanging out, swimming, or cruising around. I hear the "speach" from my wife about the skin cancer thing, sometimes I listen, sometimes I don't.
Hey Joe.....please! NO graphic pics of guys with skin cancer.