Stillwell Woods features 4 miles of hiking trails near Syosset, NY.
About 2 miles East of 135 on 25 near Syosset, Long Island. Look for a large supermarket on the North side of the road. Next to the supermarket is the trailhead parking lot. Lunch truck usually parked in lot sells extra tubes, etc...
http://www.tripleblaze.com/trail.php?c=3&i=392