From I-90 (Mass. Pike) take the Cambridge/Allston Exit 18 (left side). Bear right on ramp after toll booth. Continue over the bridge to Memorial Drive. Turn right onto Memorial Drive. Now the Charles river is on your right. You will drive over about 100 yards and come to the field on your right. There's a Micro Center and a Shell gas station to your left
From I-93N take the Storrow Drive exit 26, take under-pass and coming out of it stay left. This should take you to the Longfellow Bridge. Use Longfellow Bridge (two sets of towers with T line in the middle) to cross over to Cambridge. Take first right off the bridge. You should end up passing under the bridge and getting on Memorial Drive. Travel on Memorial Drive, passing MIT, going under Mass Ave, and then passing a hotel, all on your right side. Charles river is on your left. You will drive over a viaduct and come to the field on your left. There's a Micro Center and a Shell gas station to your right.
From I-95/Rt.128 take the exit for Route 2 East to Arlington and Boston. Bear right, and pass by the Alewife T station on your right as you get on Alewife Brook Parkway. You will go over some rail tracks and come to a rotary. Make a left and you will come to another rotary. Make a right. You will pass a bunch of car dealerships, and pass through a residential area. You will pass 4-5 traffic lights until you will come to a point where you will have Mt. Auburn Hospital to your left, BB&N school on your right and a big junction. The Charles river will be visible as well (ahead and to your left). Follow the signs to get on Memorial Drive. You will have houses to the left and Charles river to your right. You will drive through a bunch of traffic lights and a bunch of bridges on your right. Until you pass a MircoCenter and a Shell gas station on your left. The field is on your right.