You will have to solve the following Jigidi puzzle to get what you need for the reverse Wherigo

https://www.jigidi.com/solve/3jwyhzsy/mr-and-mrs-hay/

This Wherigo converts your player into a virtual version of the "Reverse Cache Box" which tells you the distance to the cache, but not the bearing. You may begin your search from any spot in the world using your Smartphone or Wherigo compatible GPS to navigate to the cache. The cartridge was created by -Waldmeister- and is available to DOWNLOAD HERE. -Waldmeister-'s "The first Reverse Cache [WIG]" is the original cache in this family. Your task is to find the cache by periodically querying your Reverse Cache Box for the distance to the final location. Try to use your Reverse Cache Box as few times as possible. All instructions and necessary information needed to complete the cartridge is contained within it. The cartridge is multilingual.