Boat rental on the Sevens Sea Lagoon

[cmc08]

edit: I've just realised this has been posted in the wrong section... Sorry!

Hi Folks

This is my first post and I've done searches on the forum but it doesn't really answer my questions, so please go easy on me! :

I'm looking for info on renting one of the boats from either the Polynesian or Grand Floridian.
Firstly, could somebody help with identifying the different types of boats available... water mice, pontoon boats, canopy boats, outrigger canoes. (Pictures would be awesome! )
I have a rough idea of what some look like but clarification would help before I book one and it turns out to be the other!

Water Mice: ???

Pontoon Boat: the large catamaran type vessel with comfy looking seating and a roof type canopy over the rear end.

Canopy Boat: ??? I'm guessing involving some sort of canopy!

Outrigger Canoe: ???

Also could I rent a boat to watch the fireworks at Magic Kingdom?

Renting from the resorts that are on the Seven Seas Lagoon, which would have the better selection of boats?

I'm trying to plan a special surprise for my girlfriend on her birthday and any help is greatly appreciated! Thanks in advance!