Take Route 95 to Route 2 East. Follow to the intersection at the Alewife T Station. Stay right at the lights and follow past the Summer Shack restaurant, over the bridge and through the Alewife shopping center. You will come to a rotary at The Ground Round restaurant. You should stay left on the main road there. You will come upon a second rotary and you should stay right there. About 1/4 mile up after the rotary you will see the field set off to the left. The field is on Fresh Pond Parkway opposite the Cambridge water treatment facility, between Poplar Road and Huron Avenue. There is a white sign at the field entrance.