What is another name for the Polka Marina's ride type?
Polka Marina Polka Marina is a Merry-go-round in amusement park Efteling in the Netherlands. It started operating in 1984.
Tumble bus A tumble bus is a full-sized United States school bus that's been converted into a mobile gymnasium invented by Brenda Scharlow from New Albany Indiana. They are often equipped with modified and smaller versions of most equipment found in gymnastics centers. Often, tumble buses offer weekly classes, as well as events and birthday parties.