Zuiver is the largest sauna complex in Amsterdam, set at the edge of the Amsterdamse Bos with eight saunas: an experience sauna, a fireplace sauna, a Japanese sauna, a colour therapy sauna, a relax sauna, a caldarium, a steam temple at 98 percent humidity and an infrared cabin. Sauna masters give at least eight free aufguss sessions a day. There is a 14 degree plunge pool and a heated outdoor pool, and day entry is 45 euro. Swimwear is worn only on Tuesday, Wednesday and Thursday.