One on my favorite things to do in Colorado is to soak in the hot mineral water pool, especially if it’s outside. We will be going to several hot springs pools on our trip, one of them is Sand Dune Pool in town of Hooper. It is large outdoor pool and family swimming center. Swimming pool, decks, greenhouse lounge, and family picnic area. The “Hooper Pool,” as it is affectionately called by locals, technically is not quite a hot springs, since it is fed by warm water from a 4,400-feet-deep well that delivers water instead of black, gooey oil. While there are over 15 different minerals found in the chemical analysis, the four most abundant minerals in the water are: sodium chloride, potassium sulfate, calcium sulfate, and calcium bicarbonate.