In many ways it's just the modern equivalent of one of these ...
That's what I was talking about when I said "duck" ...
They use those at the Wisconsin Dells for tourists, they are called the ducks ...
Is there an echo in here?
... This same outfit has been making amphibious coaches for city tours for many years, after the success of ex-military "ducks" being converted to city-tour coaches around the country. Google "duck tours" to see some examples. ...
If you do Google "duck tours" you will find several places these are offered besides the Dells. The Terrawind folks have been capitalizing on this for quite a while, as the old military ducks are at (or past) end-of-life, and cost a small fortune to keep up to USCG standards. BTW, you need at least a 50-ton Masters License and a TWIC card now to operate one of these in the water, in addition to a current class B CDL with Passenger endorsement to operate it on land.
-Sean
http://OurOdyssey.BlogSpot.com