Amid all the flight delays and messy streets, we may sometimes forget that winter in New York is supposed to be awesome. (Seriously.) The parks look beautiful under a blanket of snow, and think about it: When is the air ever cleaner than on a crisp winter day? The Parks Department reminds us why we should love the colder months with Winter Jam, its annual winter sports festival in Central Park. Families can learn or take part in snowshoeing, cross-country skiing and snowboarding. Bring your own snow sports gear or borrow the equipment on load at no cost, then while away the hours sipping hot chocolate and enjoying the outdoors during this ultimate snow day. All ages.