We're staying at Disney, but renting a car and going to the Universal parks for a couple days. Do you park in the same parking lot for US, UIOA, and CityWalk? Can you walk from one to the other two?
You park in their 2 parking garages which I've heard are the biggest in the world.From there you walk into the Universal complex passing through Citywalk where then you'll find Universal Studios on your right and Islands of Adventure on the left.