For many children, writing their Christmas list is an annual tradition. This holiday season, let your kids get up close and personal with old St. Nick and Mrs. Claus and drop off their hand-written notes face-to-face in the railway post office car. After delivery, kids will receive a keepsake and can enjoy a warm cup of cocoa. Days, times vary.

Come celebrate the season with a train ride—Santa’s preferred mode of transportation—at the Colorado Railroad Museum. Kids can mail their letters to Santa at a real railway post office car, visit Santa, and drink hot cocoa at the Depot General Store while getting in the holiday spirit. Sat-Sun 9 a.m.-5 p.m. 

Sometimes kids have the best ideas. Why shouldn't they have a venue to sell them? The Young Entrepreneur's Market Place is the perfect location for either your kid to peddle their house-made bracelets, buttons, or greeting cards. For adults, it might be a great opportunity to pick up a few gifts before the holidays. Sat 10 a.m. 

Appealing to more than just the peanut gallery, Buntport Theater's live comic book turns children's theater on its ear by playing to the tech-savvy generation of young-ins in the audience and inviting their parents to join in on the laughs. Each episode is based on a comic book chosen by the audience at the previous show.

Exuberant energy and perpetual sugar highs surround families throughout the holiday season. Help your little wind down with an hour of yoga followed by 30 minutes of crafts and a snack. Kids attempt postures and poses that follow weekly themes, such as birds or butterflies. Parents can either take 90 minutes to themselves or check out the all-levels yoga class that runs at the same time.

Each year, the Shepherd Valley Waldorf School does away with the ghouls, goblins, and cheap commericial trappings to create a magical kingdom that will entertain the little ones without sending them home with nightmares. At the start of the journey, each family is paired with a shepherd who guides them to meet friendly gnomes, queens, and kings ready to offer wisdom and humor.

Imagine this: an enormous present made from layers and layers of different sorts of sustainable gift wrapping, from newspaper to grocery bags. At the event, kids take the layers off one by one, pausing each time to learn about another kind of recycled or reusable gift wrapping. When they finally get to the center, there might be something just for them from the Majestic View Nature Center.

Santa will show up eventually, but before he does Mrs. Claus wants to make sure all the little ones are ready with a special Christmas program. Mrs. Claus will teach everyone Christmas songs and stories. Once everyone has had a chance to practice; old  Kris Kringle will be called with jingle bells to enjoy the performance. Sat 1 p.m, 2:30 p.m.  

Milk and cookies don't count as breakfast. Even for Santa, a good start to the day means a strong, healthy meal. Enjoy a spread that includes everything from French toast to fresh fruit, and afterwards let the kids make festive crafts and write letters to Old Saint Nick. Sat, Sun, Mon 9 a.m. 

Usher in the New Year a good 12 hours before bedtime. The Children’s Museum plaza transforms into bustling New York City, complete with a glitzy ball drop, decorative hats and plenty of confetti. Instead of a toast, the kids will celebrate by stomping on an enormous sheet of bubble wrap when the clock strikes noon. Mon, 9 a.m.-4 p.m.