While staying in Ouray, CO, my boyfriend and I discovered Orvis Hot Springs. We were talking about the Ouray Hot Springs Pool (which looks like a huge public pool) with the owner of the hotel we were staying in. We asked if there were any other more natural looking hot springs in the area. She informed us of Orvis and then "warned" us in a low voice, "but its clothing optional..." We were not scared away by this, so we decided to check it out. Although the pools were manmade, they appeared natural with stones and slate. They do not add chemicals to the water (the Ouray one adds chlorine). There were a variety of soaking ponds, we tried every one. It was so great to soak for a few hours at the end of a long day of hiking/snowshoeing and sightseeing. So good in fact, that we went back the next night too! For those unfamiliar with clothing optional places, you do not have to be naked. No one will make fun of you for wearing a bathing suit. There is on indoor pool (also natural looking with a waterfall and low lighting) that requires a bathing suit. I recommend bringing a robe if you have one...we didn't but we had wished we had brought one. Also, you can bring food (no glass, no alcohol) and use the kitchen and fridge. I think there are BBQ grills too for use.