From the East, South and West, take I-90 or Mass Rte. 2 to I-495, exit 11.
Go north on 495 21.9 miles to Exit 31, route 119W, the Groton/Acton exit.
Once you're on 119W, Grotonwood is 4.8 miles.
Turn right on Gay Road and immediately take a hairpin right turn onto Prescott Street and the entrance to Grotonwood.
Stay on Prescott and look for the signs to the Family Center and Banjo Camp North.
If you pass a golf course on 119W, you've gone too far. Turn around in the parking lot for Johnson's Restaurant & Dairy Barn. Then it's 0.8 miles back to Gay Rd and Prospect.