Will be heading to Discovery Cove for a day while we are at WDW for vaca. I was hoping to to just rent a car for the day but was not sure if there was a place to rent a car from WDW properties rather then getting a ride all the way back to the airport to get one.
The Car Care Center on property by the Magic Kingdom has a car rental facility. They can get you taken care of, not to mention there are a few car rental locations on Hotel Plaza Blvd by Downtown Disney. There is no reason for you to go all the way back to the airport.
Alamo has a rental location on site at Disney and I believe also at Swan and Dolphin resorts. Normally most car rental companies in Orlando attractions areas will pick you up and drop you off.