During the winter, people often miss the smell of the beach. Unless they have a membership at Beverly Athletic Club, that is. The gym boasts a 65-foot indoor pool, heated to a comfortable temperature, and filled with saltwater mild enough not to sting anyone's eyes. Visitors can take a dip in its ocean-emulating confines during open swim, or hit up an array of pool-based classes such as Aquatic Zumba, a less-stressful alternative to tap-dancing over a dunk tank.

Of course, the unique chlorine-free pool is just one of the benefits BAC offers its members. Its two locations boast group fitness classes, which run the gamut from RPM, an indoor cycling program, to BodyCombat, a martial arts-inspired workout that draws on disciplines such as karate, muay thai, and boxing. Personal trainers, meanwhile, lead more personalized workouts, while a childcare center helps little visitors learn to love an active lifestyle by providing access to play structures such as a rock wall and ball pit.