SOURCE: Harvard Health Publications Calories Burned Bowling Water Volleyball Golf Archery Walking (17-minute mile) Gardening Kayaking Softball Dancing Tennis Running Bicycling Swimming 112 per 30 minutes 112 per 30 minutes 130 per 30 minutes 130 per 30 minutes 149 per 30 minutes 172 per 30 minutes 186 per 30 minutes 186 per 30 minutes of play 205 per 30 minutes 260 per 30 minutes 298 per 30 minutes 316 per 30 minutes 372 per 30 minutes of breaststrokes MAGAZINE 25