On my honeymoon we went snorkeling, I burn pretty easily so I applied gallons of sunscreen everywhere, even left the nose a bit white like the true nerd that I am . At night after snorkeling I started to get a painful burning sensation in my butt all of a sudden I couldn't sit (was in the car), when we finally stopped I checked and my ass was bright red, seems while I scuba and floated in the surface my butt cheeks were exposed outside the water and got a severe sunburn couldnt sit right for a couple of days