Colorado's main attraction. Trail Ridge Road goes from Estes Park to Grand Lake and is one of the highest paved roads in Colorado reaching over 12,000 feet above sea level. Visit the website for information on timed entries. You must have an appointment to enter the park.
Tons of activities right at the YMCA.
The Shining Hotel. Red Rum. They have an hour long theatrical tour of the hotel.
Super cute downtown with shopping, dining, and more. You might even see a herd of elk wandering through town.