Perusing my hides, I noticed I'd never hidden a Wherigo. This is to round out my hide types. This one is a Reverse Wherigo and the cartridge to play it can be can be downloaded from here: Reverse Wherigo Cartridge
It is not at the posted coordinates. The goal is to use the wherigo info to get closer and closer to the final location and find the geocache. Of course there are other ways to determine the final location if you don't fancy emulating a drunkwards walk. As usual the Internet and Friends can help expedite your search.
The numbers you need to play it are:
003327
316614
307492
Your task is to find the cache by periodically querying the cartridge for the distance to the final location. To begin, select 'Play', then enter the above three 6-digit numbers into your player.