The good news in my ongoing battle to lose weight (and alleviate gout) came courtesy of a website telling you how many calories various activities burn.
Walking, for a guy my weight and age, uses about 200 calories per hour (CPH), the digital assistant assures me. Running comes in at about 500 followed by vigorous cycling at 600. I thought swimming, at 700, was the top fat burner until I plugged in playing golf with a motorized cart. According to the program hitting the links eats up a full 750 CPH!