Come summer, you’ll be hard-pressed to find a Bostonian indoors. The 17th-century Boston Common is the oldest public park in the country, and it’s perfect for a stroll, a picnic, or a ride on the swan boats. Another popular point of convergence for cyclists and kayakers is the Charles River, and the Hatch Memorial Shell hosts concerts and festivals on the banks of the river throughout the summer. Head to the Lawn on D to chill on the funky circular swings or play mega-sized Connect Four or checkers. But perhaps no activity is more synonymous with Boston than a ball game at Fenway Park. There are few baseball fans in the world quite like Red Sox devotees, so be sure to catch a game—even if the Sox aren’t playing their lifelong arch nemeses, the New York Yankees.