UTM: 17S E 277817 N 4218195 NAD83. That's the coordinates for the first cache in Sky High Knob Hopping at Cave Run, which is a multi-cache. This photo album shows photographic clues, but in reverse order since I know how to do it backwards! Although thisUTM: 17S E 277817 N 4218195 NAD83. That's the coordinates for the first cache in Sky High Knob Hopping at Cave Run, which is a multi-cache. This photo album shows photographic clues, but in reverse order since I know how to do it backwards! Although this multicache offers some difficult terrain, you can do it in 4 hours with an 8-mile loop with a minimum of bushwhacking, depending where you start and how creatively you use existing trails, roads, and deer paths. You can use the Cave Run Lake Trail Guide and not bring a GPS if you are good at reading maps. If you have a GPS, but need a map, don't worry! Each cache has Cave Run Lake Trail Guide as reward, but only take one set per person. Good Luck!