I think ill say that this "island" is what is called a heat island (An area in a city where it gets really hot), so I would just go into a building with air conditioning.
What would you do in the vehicle on a 8 hour car trip?
Play on the iPad/iPod and read, read, read, read, read, read, read (yes, I am a book-addict), play a game with siblings, listen to a recorded book maybe, etc...
same q