From Logan Airport:
Follow the exit signs from the airport for the Sumner Tunnel to Boston.
After emerging from the tunnel, bear right up the ramp onto the Expressway going toward Route 93 North.
Follow 93 North to Route 95 (formerly Route 128) South toward Waltham.
Follow Route 95 South to Exit 31B, which is Rtes. 4 and 225. Go toward Bedford.
Follow Route 225/4 until they split, then stay on Route 225 toward Carlisle. (You’ll be going left.)
Stay on Route 225 past Bates Farm (also called Kimball Farms) ice cream stand on your right, and the Green Cemetery on your left.
You will come to a small rotary about a half-mile from the cemetery. Go half way around the rotary and take a left going up the hill – this is School Street.
The first left off School Street is Church Street. (There's a church on the corner.) Take the left onto Church Street, then a quick right into the school's parking lot. Walk up the stairs, cross the bus plaza and walk up the second set of stairs to the building level. Buildings are clearly marked.
All visitors must check in at the main office in the Spalding Building.