When we’re emotionally involved with something requiring physical movement, that’s when we burn the most calories. Sailing requires constant movement, standing up from a sitting position, squating to see other boats under the mainsail and bending backward to watch the luff for wind shifts. My husband and I don’t race the Shields, but it is a top performer. I admit to having fun passing other boats but try not to be obvious about it. Probably that comes from years of racing as a kid, having started as a kindergartener.
I never learned to wind surf. Johnny was 12 when he got his first windsurfer.