The cache is in a small tupperware container hidden in a fallen tree. The etrex was giving weird coordinates so be patient, I promise the cache is there. A picture will be added soon to help with the search. You will need to do repeat "GoTo" funcitons and eventually you will succeed.
I recommend parking at N40° 11.511, W 083° 05.126. On weekends and evenings the park will be full of soccer moms, kids, and several hundred SUVs. You are now in the middle of YUPPIE hell.
Enter the woods at approximately N 40° 11.438 W 083° 05.051. This will take you into the woods at a point where there is no fence. Find a safe place to cross the stream and begin the actual search from there. A fallen log seems to be the best place to cross. The cache is about 180 feet from the most likely crossing place.