How about renting a bike at Disney? Yes, you really can.

Many of the resorts have bike rentals for you to enjoy. This includes but not limited to Art of Animation, Beach Club, Yacht Club, Port Orleans and Fort Wilderness.
Children under age 16 must wear helmets.  It is on a first come first serve basis.
What a great way to check out your resort and beyond! It will give you a new perspective on what is around you.