Good Harbor Beach, located on  Thatcher Road (MA-127A), features soft white sand, clear blue water, and a scenic view of the Twin Lighthouses on Thacher Island. Visitors can enjoy swimming, surfing, fishing, or relaxing on the shore. There are also facilities such as restrooms, showers, snack bars, and parking lots available. Good Harbor Beach is open year-round, but lifeguards are only on duty from Memorial Day to Labor Day. The beach is accessible by car, bus, or train, and there is a footbridge that connects it to the nearby Salt Island. 

The beach is very popular during the summer and there is a parking fee.