Wellness "Sand Dune" From June 2022, our small "sand dune" of contemplation and fitness with saunas and Kneipp water treatments will complete the feel-good offer at Tetens. We offer you the opportunity to enjoy our infrared sauna and the Finnish sauna. After your sauna session, you can refresh yourself under our outdoor shower. To relax, there are loungers in the outdoor area and in the beautiful, light-flooded interior relaxation room. Opening hours by arrangement Thursday-Saturday 4.30-7.30 p.m