Yes, you have undoubtedly seen tour buses rolling through various cities. You have seen boats floating down waterways. But have you seen an amphibious tour bus? In Amsterdam, the Floating Dutchman began service last month. The New York Times reports that the amphibious tour bus travels through the city center on highways before entering the water near the Nemo Science Center. Do you think a similar tour bus would be successful in the greater Des Moines metropolitan area?