The cache is not at the posted coordinates but Stage 1 of a multi-cache!
As with all suspense movies or TV shows you have to work through all the clues before drawing a conclusion. Well this multi requires you to visit several Historical Plaques in Rotary Park to determine the final location of the cache. It is possible you may even learn a little bit more history concerning the Town of Penetanguishene, I did. Now how observant are you, a little bird told me you can make this easy or hard what will be your method of determining the final outcome. The cache is a lock-n-lock container that can hold several smaller items and as always, enjoy the scenery and search.
The final may be found at: N 44 4A.0BC W 079 57.DEB
You can check your answers for this puzzle on GeoChecker.com.