Bike the Assabet River Rail Trail from Hudson to Marlborough (12 mi round trip).From the parking lot off Route 62 in Hudson, ride on a moderately difficult, well-maintained, paved trail through Hudson, across the Assabet River, into a beautiful cut through a ledgy bank, past an open hillside/top with a lovely view of Marlborough. The return trip is especially fun because it is downhill. At the end is a very nice ice cream shop, and a short jaunt to the parking lot.
Hudson, MA 01749
Google map and directions