Original and funny
This is a tour of the city of Rotterdam which takes place on board a special bus. Part of the route is by road, visiting the most important tourist points of the city, but part is in the water, as the bus is an amphibious vehicle. The starting point of the tour is located next to the Maritime Museum of Rotterdam, and the journey lasts about an hour. It costs about 19.50 for adults, and 12.50 for children under 12. My opinion is really positive, as you can see the city from a unique perspective.