Air conditioned stores line the sides of Main Street, U.S.A. If you’ve just arrived at the Magic Kingdom or Disney’s Hollywood Studios and the heat is too much, duck into a store. Stores run parallel to Main Street, U.S.A. and also Hollywood Boulevard. It might only be a couple of minutes of relief, but on a hot, humid day any time in the AC makes a difference. You might want to do the same thing when you’re leaving the park.