21 days in Denver Area Itinerary

Aptly nicknamed the "Mile-High City," Denver sits at an altitude of 1,600 m (5,280 ft) above sea level, located right where the Great Plains give way to the Rocky Mountains.

Get out of town with these interesting Denver side-trips: Golden (Apex Park, Centennial Cone Park, &more), Sedalia (Sanctuary Golf Club & Devils Head Lookout) and Castle Rock (Mini Incline, Gateway Mesa Open Space Park, &more). The adventure continues: take your sightseeing to a higher altitude at Mount Evans, pause for some serene contemplation at The International Church of Cannabis, cruise along Mount Evans Scenic Byway, and learn about wildlife with up-close encounters at Denver Zoo.

To see traveler tips and more tourist information, you can read our Denver trip planner.

London, UK to Denver is an approximately 12-hour flight. You'll gain 7 hours traveling from London to Denver due to the time zone difference. While traveling from London, expect somewhat warmer days and about the same nights in Denver, ranging from highs of 30°C to lows of 13°C. Finish your sightseeing early on the 25th (Sun) to allow enough time to fly back home.