The cache is not at the posted coordinates.
But you can enjoy a nice stroll around the park if you care to.
N41 AB.CDE W87 FG.HIJ
You must complete the "Ernest Hemingway's Early Years" Adventure Lab Cache Series to solve this mystery cache.
The final is located on historic property owned by the Park Department of Oak Park. Cache is placed with permission from the staff who work on the premises.
The container is something I stumbled upon while scoping out this host as a possible hiding spot. Once it was discovered, I knew this had to be the cache.
Location is open to the public from dawn until dusk year round, with occassional closings due to private functions.
If you seek this cache on a day when there is an event happening, please return another time to make the retrieval.
Use stealth if muggles are near.
Please replace exactly as found in the host, and always be respectful of the surrrounding grounds.