5k cross country loop through Lynn Woods Reservation from Great Woods Road entrance off of Rte 129. Wooded hilly area, marked dirt trails. Walk or run! Custom race Tshirts to first 100 registrants. Discounted rate for students under 18 - does not include tshirt. Prizes for top runners in each category. The Lynn Woods Reservation was founded in 1881, the second largest municipal park in the United States, is a 2,200 acre municipal forest park located in Lynn, Massachusetts. The Woods offers over 30 miles of scenic trails for hiking, running, horseback riding, mountain biking (not allowed during the winter), cross-country skiing, and nature walks.