The gym. Those words strike fear into the hearts in nearly two-thirds of americans who are overwieght. I braved it with the wife, who is world-renowed at scoping and obtaining workout equipment. She was kind enough to teach me the art. The key is (as it is with everything) location, location, location and timing. A half of an hour on a elipitcal machine, which was a much different work out than I am used to, and another 12 minutes on the 'erg' (a.k.a. rowing machine) lead to a nice alternative workout.
With all clothing but shoes I'm at 211.9 lbs. (Usually, it's just a wet towel.)