A Wherigo is a slightly different way of caching that allows, sometimes with a bit of imagination, to walk a route as part of a story or with questions along the way. We have done a couple now and once the Wherigo app has been downloaded (we have used both a smart phone and an iPad) it is quite easy to download the relevant cartridge and away you go. For the Houndtor whereto you will need to go to the first waypoint and once you are within a few feet you will be given an imaginary task, which is fulfilled by getting within a few feet of each waypoint. Eventually the ‘story’ ends at the final cache location where you will find a traditional cache to log. We have also done one just outside Launceston where we had to answer questions along the way. We have certainly had great fun doing them.