You will need to park up in the general area to start the maze. You are looking for your cheese like a rat in the maze.
Please watch out for vehicles parked or driving. Usually the parking lot is empty, but you never know.
It helps if you print out a blank map to route your journey to keep track. You cannot back track. Once you go into a block, you cannot back up.
For More information on Wherigos: Wherigo website
You can download the cartridge here: aMAZEd Cartridge
Please log in the completion code on the Wherigo site when finished.