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 ...

Beach and pool season are starting. Why not get a little exercise while you’re in the sun? Credit...Yuvraj Khanna, Bryan Bennett, Zack Wittman, and Logan Cyrus for The New York Times Supported by By ...