Board Boston's subway from the closest stop. An interactive subway map is on the website of the Massachusetts Bay Transportation Authority (see Resources).
Transfer to the Green or Orange line, if you are not already on it. If you are on the red line, switch to the Green Line at Park Street. If you are on the blue line, switch to the Orange Line at State Street.
Get off at North Station. Leave the station and walk on to Causeway Street.
Walk east till you reach North Washington Street.
Turn left, and walk over the Charlestown Bridge. A red stripe on the bridge marks the city's Freedom Trail, a tourist path through historic Boston sites. Follow this red path during the remainder of your walk to the ship.
Turn right after the bridge on Chelsea Street.
Take the next right on to Warren Street, then turn left onto Constitution Road.
Walk to the end of the road. You will see the ship on your right.