Cache is NOT at the posted coordinates, but is the right spot to head in for the cache.
This cache is a BONUS CACHE for completing the Swinging Bridge and Glen Park Adventure Lab. After completing the Lab cache, you'll be provided with the final coordinates for this cache. The lab itself will take you to some nice locations in and around Glen park, including the Swinging Bridge. Container is a small, and should be friendly most any time of the year.