Day spa of the family-run Hotel Birke in Kiel-Hasseldieksdamm, open to day guests who book ahead by phone. Admission covers a 6 x 12 m pool at 29°C, a 90°C sauna, a 60°C vital sauna, an infrared cabin, a brine steam bath and a 40°C tepidarium, plus a Feng Shui garden with beach chairs, Kneipp basin and barefoot path. Aufguss ceremonies take place in the outdoor sauna. The hotel says the Finnish sauna is currently out of service.