This wherigo cartridge is a "play anywhere" cartidge which means just that....it can be played anywhere. However, in order to receive the coordinates of this geocache you will have to be within 35 miles of the posted location.
**Added 4/6/2013**
An alternate cartridge for iPhone users if the one above will not work on your device.
Find an open area that you'll be able to walk at least 450' to the East and 150' to the North from where you start the game. Failure to do this may make it impossible to complete the cartridge as zones may wind up in somebody's back yard or in the middle of the street. Also, be sure to bring along a pencil and paper to take notes and to write down the cache coordinates. Depending on your luck and skill, walking distance may be anywhere from a few blocks to a little less than a mile.
A completion code will be given to unlock the game at wherigo.com.
If you have questions on the cartridge, please contact RS Arizona.