The Reverse Geocache was created by Mikal Hart and it's such a great idea for a cache. In 2011, the spirit of the Reverse Geocache was captured by Waldmeister with The Reverse Cache Wherigo. This cartridge is used all over the world and has made a big splash in Edmonton with hundreds available in or near the city. The cartridge can be downloaed here and all you need now are the numbers.
715356
852438
189103