Insanity is doing the same thing over and over again but expecting different results. We have placed several caches on this side of Grant park only to have them disappear. It doesn't matter the size, type, or how they were hidden...this side of the park is cursed. Hopefully, this cache will break the curse.
If you really want a hint, although any seasoned cacher won't need one, look at the title. You are looking for a Geocache in Grant park with properties of Geromorphism.
Obey all park hours and rules.
[I'm afraid... we lost them.] - Fghpx ba Lbh [(2003)]