We went here on a freezing cold day in January and got warm to the body core. Beautifully built into the mountains, three of the original buildings are listed on the National Registry of Historic Places. Steeped in myth and legend, these ancient hot springs have been a gathering place and source of healing for thousands of years. The waters are sulphur-free and different pools contain different healing minerals such as lithia, iron, soda and arsenic. All of the pools are "whisper zones" making it a real retreat.