Challenge Caches

Don't be fooled. Challenge caches are not the same as Groundspeak challenges introduced in August 2011 and retired in 2012. Challenges are considered by many to be a replacement for virtuals as all premium members may issue a challenge where perhaps it is not wise to place a physical container.

A challenge cache requires that geocachers meet a geocaching-related qualification or series of tasks before the challenge cache can be logged. Additional Logging Requirements were banned from geocaching as there were many silly requirements. Challenge caches are a controlled compromise providing an even more addictive element than caching for smilies.

Challenge Caches I've found

You must find a cache that has not been found for at least a year.

29 Feb 2012 - I claimed this challenge with GCV08D - Stop; Look; Listen! (Bucks) which I found with Heff and my brother in-law.
To satisfy this challenge you must have found at least one cache that was hidden in each year from 2001 to 2012 inclusive.

Claiming caches on 29 Feb 2012:

2000 GC43 - Europe's first
2001 GC171 - View from Coombe Hill
2002 GC37E8 - Meridian of Gellérthegy
2003 GCD658 - HM3 - The Village Green (Herts)
2004 GCHEQ5 - Dun Eochla View
2005 GCMD9F - Winter Hill III
2006 GCTC4N - Keep Diamond Hill Sparkling part 1
2007 GC10K49 - "You cannot be serious!"
2008 GC1860V - WTF: Magnets? None of those here!
2009 GC1KJ7J - The "M" Club
2010 GC232GP - Coral reefs - Rás Muhammad
2011 GC37WGC - CBN 050 - Zoo @ Colchester
2012 GC3CHVW - Badgemore's Box
You must have logged at least 100 Did Not Finds (DNF’s) on geocaching.com.

As of 29 Feb 2012:
You must have logged three DNFs on the same cache and then demonstrated perseverance by finding the cache.

Claimed on 29 Feb 2012 with GC369B8 – Parking

DNF 1 – search with no info as to where it was.
DNF 2 – popped away for a couple of nearby caches and then were driving past so a quick look.
DNF 3 – Parked up here to have a go at the nearby series
DNF 4 – Completed the series so of course had another look (that’s four DNFs in the same day)
Found – Night time visit to find a couple searching. Only for me to put my headlights on the problem and a very QEF by me. Wish it had been the first time.

Hidden By Me

The Well Travelled Cacher GB - find a cache in each 5-mile interval within a distance of 250 miles.
A Large Leap of Caching Numbers - find one cache on a given day; two caches on another day; three caches on still yet another day and so forth all the way up to finding twenty nine caches on a single day.
Do You Know Other Cachers - find three different kinds of caches hidden by 10 different cachers.
Fantasy Favorites - find 25 caches with at least 25 Favorite Points each, with a mixture of 8 icons
100 club abroad solo - find 100 caches on your own within one calendar day abroad
icon collecting - find 11 caches each with a unique icon
Christmas vocabulary - 12 caches that include a Christmassy word in the title