Exit the airport and follow the signs for MA-1A S/I-93N/Sumner Tunnel/Government Center.
Continue onto MA-1 A S
Use left lane to take exit toward Government Center
Keep left, follow signs for Government Center
Keep left to continue toward JFK Surface Road
Turn left onto JFK Surface Road
Turn right onto Freedom Trail/Hanover Street
Turn left onto Blackstone St.
Turn right onto Creek Square
Turn right onto Union Street.
We are on the right, about halfway down at 41 Union Street.