Oh Dear must we get so picky?
See GC2z3JG & GC221BN and you will see that this challenge is currently achievable. There are many local cachers with only one day [29 Feb] to complete.
I see that someone is very quick to make assumptions without evidence. We have hiden 129 caches or events, well over 50 being in the National Park. They include traditionals, multis, puzzles, challenges events and earth caches. Unlike Wenglish who has found over 500 and hidden how many.