The Grotto, near Aspen, CO - The Grotto is a little-known (to outsiders) waterfall and recreational area just south of Aspen, Colorado, off Highway 82 and about halfway between Aspen and Independence Pass. A steep stone-stepped trail leads down to the waters edge. The major pool is deep and locals will line up on a hot day to jump into the cold water from the cliff 20 feet above. While we were photographing, a fisherman was catching fish after fish in the deep pool. It's the perfect place for a picnic, as there are plenty of good "sitting" rocks all around.