Flight
We suggest flying into Colorado Springs (COS), 25 minutes away. The Denver airport is a 1.5-hour drive from Green Mountain Falls without traffic, and there usually is some heavy traffic between Denver and Colorado Springs. If you are not renting a car, you'll want to leave extra time for Uber/Lyft back and forth to the wedding because of the busy art festival.
Hotel
Many guests are renting cabins through Airbnb, VRBO or Easybnb in Chipita Park (where we are staying), Cascade (almost the same town) or Green Mountain Falls, where the wedding is. There are hotel options in Woodland Park (9 min away) - Country Lodge or Wyndham Microtel Suites. Also, there are several boutique and other hotels in Manitou Springs - (15 min), as well as cabins for rent. The popular Green Box Arts Festival is held in Green Mountain Falls from mid-June to mid-July, so we suggest booking accomodations early.