There are two outdoor pools; one deeper than the other mid-ship and there is a dome covered Thalostherapy pool which is supposed to be adults only as it contains minerals and theraputic salts with powerful relaxing jets and a "bed". This free Spa pool and area is much bigger than on the Century and Galaxy class ships. The T-pool on Century & Galaxy is within the Spa and a fee based smaller pool but many like it more than the larger unit on the Millennium class.