You rub sunblock all over yourself, so you wouldn't get the sun to burn your entire body, while at the same time preventing yourself from catching a sunburn at the beach. Just then you hear the sound of a little kid drowning, while knowing that the sunblock you placed on might wash off if you go into the water, and rescue him.
However, before you could even begin to do such a thing, you see a woman wearing a red one-piece swimsuit with a white plus-sign in the center of it, run towards the water, while carrying a life-tube to save the drowning child. That woman who dove into the water was the beach's lifeguard as she paddled after the kid, and placed the tube around him, while also paddling him back to dry land, where he could relax, and vomit some of the water out of his body after inhaling some of it.