Take I-495 to the Groton/Littleton Common exit, #31. Follow Rte. 119 west for 6.7 miles; Lawrence Academy is on your right just before the intersection of Rte. 40 and the center of Groton. Turn right just after the white school sign and then bear right as you pass the First Unitarian Universalist Church on your left. Visitor parking is on your left, just beyond faculty parking as you enter the Quad, and the admissions office is in the Schoolhouse, which has a rounded portico and gold cupola.
Bear left out of the airport onto the Expressway, through the tollbooth and Sumner Tunnel to downtown Boston. Take your second right after exiting the tunnel and follow signs to I-93 North, which you should take for approximately 20 miles to I-495 South. Then follow the general directions above to Lawrence Academy.