Releasing sweat is one way the body lowers its temperature, as is shooting smoke out of the ears or instinctively charging into the ocean. Keep it cool with this Groupon.

Choose Between Two Options

• $19 for 10 drop-in fitness classes (a $136 value)
$29 for 20 drop-in fitness classes (a $250.75 value)

Drop-in classes are scheduled seven days a week. They include 2 B Toned, a muscle-conditioning class; Cardio Fit and Abs, which builds core strength; Zumba Fitness, an energetic aerobic-dance workout; and 20/20/20, a 60-minute class evenly divided between cardiovascular work, muscle conditioning, and abdominal exercises.