Pedalo
A pedalo (British English) or paddle boat (U.S., Canadian, and Australian English) is a small human-powered watercraft propelled by the action of pedals turning a paddle wheel.
The paddle wheel of a pedalo is a smaller version of that used by a paddle steamer. A two-seat pedalo has two sets of pedals, side by side, designed to be used together. Some models, however, have three pedals on each side to allow a person boating alone to pedal from a centrally seated position.