PS:
Wenn man den Beschrieb zu den Mystery-Caches durchliest wird sofort ersichtlich, dass GC solche Caches durchaus vorsieht
Mystery or puzzle caches
The ?catch-all? of cache types, this form of cache can involve complicated puzzles you will first need to solve to determine the coordinates. The only commonality of this cache type is that the coordinates listed are not of the actual cache location but a general reference point, such as a nearby parking location. Due to the increasing creativity of geocaching this becomes the staging ground for new and unique challenges.