Challenge caches have become very popular the last few years, and they provide another fun way to play the geocaching game.
The rules are simple, in order to claim a find on this cache you must:
1) Find 20 challenge caches.
2) Each cache must include the word “Challenge” in the title, be listed as a Mystery/Unknown cache and must also require the finder to satisfy additional logging requirements.
3) Previous finds and archived caches may be used to qualify.
4) Create a public bookmark list with all of your qualifying caches and the dates you found them, and include this cache in your list. If you prefer, you may post a note with your qualifying caches and the dates you found them.
