The salt grotto is the latest highlight. It doesn’t just boost your health; it also offers an excursion into a salt mine. The salt grotto is made using Himalayan and sea salt. The health benefits from a single stay in the salt grotto are equivalent to an entire day by the sea. Odenwald-Therme spa also features a health and beauty area and special promotions like the “Sauna Night – the year of the dragon”.