A stay in the Sole Tunnel (about 65°C) is much like a seaside vacation: In the true-to-style, rustic mining ambience, you breathe finely atomized, iodine-containing sole. The treatment is a boon for your thyroid and thus also your metabolism and circulatory system. In addition, the salty air boosts the natural defences of your respiratory system. Enjoy the highly popular salt infusion several times a day, where you not only inhale the iodine-enriched sole, but also apply it externally for baby-soft skin. After the infusion in the salt sauna, you are invited to use the tunnel showers for gentle cleansing or cooling.