If they're something you think they can't do, they'll shock you. It might look different, but the sky's the limit," one swimmer's parent said.

Learning to swim opens the doors to a number of activities, like water aerobics classes, snorkeling and lap swimming. Not to mention, it can be a lifesaver (literally) in an accident. Yet, more than ...

For someone who is 155 pounds, 30 minutes of vigorous lap swimming can burn 360 calories, per Harvard Health. By comparison, ...