Whether you're a Redsox fan or not, no one can ignore the athletic prowess of Boston's citizens. With the completion of the Big Dig and the growing landscape of city parks, Boston has doubled its exercise and fitness opportunities. The Dr. Paul Dudley White Charles River Bike Path has served Boston's fittest citizens for many years. The 18 mile circuit is great for cycling, running and walking; it's the perfect place to train for the Boston Marathon. If you are looking for a path less congested, take a trip to the Boston Harbor Islands which offer hiking trails, beaches and picnic areas. During the winter, Frog Pond is a great outdoor ice skating rink and in the summer it's a fun-filled sprinkler pool for children. If you're a Boston resident, check out the Boston Ski & Sports Club which gives members access to recreational basketball, football, soccer, tennis, softball, golf and volleyball leagues in addition to skiing trips.