Colorado Sightseer Sightseeing Tours Colorado Sightseer Visit Website 469 South Cherry Street Suite 220 Denver, Colorado 80246 (303) 423-8200 Hours: 7 am to 7 pm MST 7 days a week About Map About We're Colorado natives that love sharing this beautiful state with visitors and guests. We offer a variety of half day and full day trips to the Rocky Mountains, Denver and beyond. See, Learn, Explore, Fun Sightseeing and Adventure Tours for all. What's Nearby? Distance: 5 10 15 20 25 50 mi.