Ok, so one of my absolute favorite ‘getaways’ from the Denver area is Moab, Utah. I actually got married there, in Arches National Park. Moab is just about 6 or so hours from Denver, and is a fairly easy drive (weather permitting), and beautiful.
I found an awesome video of the ‘World’s Largest Rope Swing’ that was filmed in the Moab area, I think in Arches. Although I don’t think the National Park Service would approve of this video, I think it is really well done, and a lot of fun. I hope it serves as an inspirational nudge for you to get out to Moab and enjoy all that it has to offer!