Just dive … you can in one of our four plunge pools. They are the ultimate freshness kick at the end of your cooling-off phase, and a must for true sauna professionals. In the lake there are two of these 18°C pools. In the natural pond and by the fun refreshment showers opposite the Citrussauna you will find two more. Gradually get your body used to this refreshing cold-water application and enjoy the lasting effect it has on your blood circulation as you rest after it. Regular hot-cold applications strengthen your immune system significantly.