 Balneology or sometimes referred to as "taking in the waters" is an ancient method of gaining the benefits of mineral water through immersion, ingestion and contact with the water over a period of time.It is believed that the mineral content within the water, especially magnesium, initiates a calming effect on the user.From 1965 through 1986 the property operated Calistoga's largest open to the public pool, the Roman Pool.