Don't miss Trail Ridge Road, the Alpine Visitor Center, the Bear Lake area (including hikes to Nymph, Dream, and Emerald Lakes), and the opportunity to see wildlife like elk and moose. Keep in mind you have to go to the park website and book a time slot if you want to go to Rocky Mountain National Park.
Downtown Estes Park is vibrant area centered around Elkhorn Avenue, featuring a wide array of shops, restaurants, and attractions, with the scenic Estes Park Riverwalk running alongside it.
Grand Lake is the name of both a large, deep natural lake and a charming, historic town located on the park's western side.
At the visitor center they do have free books with maps in them and with things to do as well