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 ...

When it feels too hot to go running and the gym is stifling, a brisk swim in a lovely cool pool is one of the most inviting ways to stay fit over summer. The problem is everyone else has the same idea ...