1. Boulder via RTD's Flatiron Flyer
2. Overview: While not a traditional long-distance train journey, RTD's Flatiron Flyer bus service operates like a light rail and offers a scenic commute to Boulder. This charming university town, nestled against the foothills, boasts a vibrant downtown with unique shops, cafes, and galleries.
3. Must-Visit: Pearl Street Mall, a pedestrian-friendly outdoor mall filled with street performers, local boutiques, and diverse dining options.
4. Duration: 1 hour each way
5. Afternoon Delight: Savor a meal at one of Boulder's farm-to-table restaurants before exploring Chautauqua Park for stunning views of the Flatirons.