Scenic Cat Rock Park is at the end of Drabbington Way, off 117, about a mile from RTE 128. Plenty of parking.
We'll run around the park perimeter, with the option of going up to Cat Rock /Water Tower, about 1.25 miles. Good workout climb to the top. All trails, clearly marked. Can do multiple loops. Map : http://www.westonforesttrail.org/images/interactiveMap/catrock.jpg