From Main Street, head east on Hart or Marsh Street (going back toward I-91). Turn to go under the highway, and at the T intersection, turn right to continue on Great Meadow Road. Follow it past fields to an intersection with a road on the right (Second Lane, but there’s no street sign). Turn there and follow along the river and through farmland for several miles. (To stay near the river, you’ll turn left at Elm Street Extension, which becomes Meadow Road.) This byway emerges at the Rocky Hill-Glastonbury Ferry. Continue to the intersection with Glastonbury Avenue (Route 160) and turn right. Turn right again at Silas Deane Highway (Route 99). Go about three miles to the light at Wells Road (Route 175). Turn right and follow a half mile back to Main Street in Old Wethersfield.