You are looking for a traditional cache placed at Clermont. For details regarding the Taconic Region Geocaching Challenge, please see C1 Cedar Vines.
Before heading over for the other geocaches, make sure to check out the history of this park.
As you head north from the visitor's center, there are many great discoveries to be had. The Children's Playhouse and its gardens is just one of them. Consider heading north from main parking, continue to the Red Barn, then up the road there, and then looping back around to take in the natural beauty of this park.