Geocaching Challenges

What Is A Challenge Cache?
   A challenge cache requires that geocachers meet a geocaching-related qualification or series of tasks before the challenge cache can be logged.  

Please note: Beginning April 21, 2015, a one-year moratorium is in effect on all new "challenge cache" submissions. This includes cache submissions that contain optional challenges. It does not impact previously published challenge cache listings. -

This challenge checker lists a lot, but not all, of the challenges -

Challenges In Pennsylvania - 

Map Challenges - typically based on the county level:
Fizzy Challenges - one cache representative for each of the 81 terrain and difficulty ratings:
Century Challenges - typically finding 100 caches with some common attribute:
Alphabet Challenges - finding caches with names for each letter of the alphabet:
Other Challenges:
* Denotes Challenges we have qualified for

From the groundspeak website - 
Additional points to consider when creating a challenge cache:
  1. Challenge caches must contain the word "challenge" in the geocache name.
  2. Challenge caches are listed as the Mystery/Puzzle geocache type.
  3. A Challenge cache must avoid undue restrictions. Specifically:
    1. Challenge caches based on a specific list of geocaches, such as those placed by a specific person or group, will generally not be published.
    2. Challenge caches cannot include restrictions based on 'date found'; geocaches found before the challenge geocache publication date can count towards the achievement of the challenge.
  4. Challenge caches need to be attainable at any time while the geocache is active.  A geocache that requires "100 multi-caches found in 2011" would not be publishable, as would not be attainable by someone new to the game.
  5. A Challenge cache based on non-accomplishments, such as DNFs, will not be published.
  6. One should not have to 'give up' finding other geocaches to achieve a challenge cache's requirements. To state that "10% of your find count needs to be Attended Logs" would require the geocacher to stop finding other types of geocaches and could affect their overall enjoyment of the game.
  7. Challenge caches may not require the publication or ownership of a geocache or waymark as a challenge criteria; challenge caches must be achievable by those who do not own geocaches or waymarks.
  8. Challenge caches must not require geocachers to log geocaches that are disabled or archived.
  9. A challenge cache should recognize the completion of a personal achievement, rather than the winner of a competition. For example, a challenge cache based on "First to Finds" is a competition between geocachers, and is therefore not publishable.
  10. A challenge cache must be attainable without the need to email the owner. The container should be located at the posted coordinates on the geocache page, or if a puzzle, the geocache page must include the means to calculate the coordinates of the container.
  11. If a challenge cache is submitted within an area where a similar challenge cache already exists, then it will need to have a unique list of qualifying criteria (geocaches, waymarks, etc.).
  12. Geocachers may sign a challenge cache's physical log at any time. However, the challenge cache may be logged as found online only after the log is signed and the challenge tasks have been met and documented.