Love the Buffalo-Pitts car load… the half round things underneath are water wagon tanks
very cool!
Thats neat! I will be building something similar but alot smaller. More like this:
I’m gonna need a bigger pond.
-Kevin.
Very Cool! I think I may start with the buffalo pitts load first though, then see if the neighbors want a railroad going to their pond hehehe 
I have a car float at Williamsport on my layout. Right now its just a piece of marine ply with two sets of rails tacked to it, but I’m hoping to build out a real car float.
That said, the Detroit is a classic Great Lakes car ferry. Here’s a neat two track one, paddle wheel and all.
The Windsor and the St Clair are examples of larger, later model ones.
In this month’s GR, there’s an article about a guy building a ship - he uses it to store his rolling stock. It is HUGE.
And in the discussion about security on your layout, if you’re making carfloats out of rowboats like that guy in GR … well, you might need one of these to keep an eye on things:
http://www.bismarck-class.dk/shipmodels/german_models/admiralgrafspeeterra.html