Puerto Rico left us spinning our wheels, but we cycled for fun in a spin class at La Concha Resort. The state of the art gym has a limited number of exercise classes, one of which is a weekly spin class.
The bikes were not exactly current, but they did have clip on one side for cycling shoes and toe clips for those in sneakers. There were only four of us (there are about 8 bikes total) but we got a good cardio workout.
The instructor mixed the usual blend of jumps, sprints and uphill climbs into the 45 minute class and I calculated that we burned up enough calories for one poolside drink.
Those who like to spin in dimly lit rooms wouldn't like the sun-splashed studio where we had the class, but I'm not really a fan of the candle-lighted nightclub spin experience.
Really, what I wanted to do was bike outside; a bike lane ran down the middle of the street in front of our hotel - but the one bike store nearby was closed for vacation the entire time we were in Puerto Rico.