I recently had my first experience renting one of the motorboats at the Polynesian and had SO much fun!! You really can take that thing almost anywhere in Seven Seas Lagoon and Bay Lake, giving you views of parts of Disney World you can't see from anywhere else. You can get up close to Discovery Island, go over the water bridge, check out the remains of River Country, etc. It's just plain interesting for all of us Disney nerds who love behind the scenes stuff.
May 2008 CSR