15. Granite Knolls Park
Description: 5+ miles of hiking and mountain biking trails on 200 acres of Town-owned park land. One unique sight is a huge glacial erratic known as the "Giant Boulder".
Where: Accessible by bike or foot from Legacy Ball Field via the pedestrian bridge over the Taconic, and via the Yorktown Trailway.
The New York - New Jersey Trail Conference has a description and detailed map of Granite Knolls Park.