Time Out says
Deep in southern Switzerland, Andeer is rightly proud of its strontium, magnesium and calcium-rich thermal waters – and they’re all there waiting for you to try at Mineralbad Andeer. The spa boasts two 34°C pools: float around in the tranquillity of the indoor baths, or immerse yourself in the bubble loungers, whirlpools and beautiful views of the Schamsertal outdoors. Come after dark and you can even enjoy a soak under the stars. Also on the menu are Finnish and bio saunas, a steam bath, physiotherapy and a great range of massages (including lomi lomi nui, pantha jama and hot stone). Even better, if it’s your birthday, you can flash your ID to get in free.