Bike on the River?

Exercising can be dead boring but not if you work out at ‘The Paris Navigating Gym’, a 20 meter long fitness vessel that accomodates 45 individuals. The boat gets most of its power from people operating stationary bicycles as it glides along the Seine. Supplemented by rooftop solar panels, the boat is a mobile exercise facility and provides a relaxing tour of Paris.

Via Urbanist