While in Colorado last month, I visited Rocky Mountain National Park twice or more a week. I explored much more of the park than ever before. In addition to taking full advantage of photography opps, I did quite a bit of hiking.
My favorite hike was Mills Lake. If you've ever seen the back side of a Colorado quarter, you've seen Mills Lake!
The hike is moderate, a bit over 5 miles roundtrip with an elevation gain of about 800 feet. The incline is very gradual and pleasant.
The Approach to Mills Lake
If you plan to take in some RMNP hikes, you need to know about this website - http://www.rockymountainhikingtrails.com
So much useful information!
Other tips for enjoying park hikes during peak summer season:
My 2nd favorite hike? The Bear Lake, Nymph Lake, Dream Lake, Emerald Lake and Haiyaha Lake circuit.