Home to the US Air Force academy, Colorado Springs is about as close to nature as you can get while still having the benefits of the city. Just a short drive from the city is the Garden of the Gods - and there are plenty of other parks and rec facilities to enjoy the mountains that are right next to the city. You will see people with their dogs, joggers, and day hikers just enjoying the nature around them. I also saw lots of retired folks who moved to Colorado Springs to enjoy and active retirement. With sun most of the year, you can see why!