Geothermic acidic and alkaline water from two hot mineral springs, flows into the 26 thermal pools at Polynesian Spa.
Acidic water is pumped into the three Priest Spa pools from the adjacent shallow Radium hot spring. The clarity of this water can change with atmospheric conditions or variations in the mineral solids suspended in the water. The water is renowned for its therapeutic properties. Millions of visitors to Polynesian Spa over the last 125 years have received relief from this water for their tired muscles, aches and pains, arthritis and rheumatism. The pools are emptied, cleaned and refilled on a daily basis. During the day there is a constant supply of fresh mineral water entering the pools.
The remainder of Polynesian Spa's hot mineral pools are filled with slightly alkaline water from the Rachel Springs. This water is characterised by its normal clarity and soft feel. It emanates from a deep boiling spring and is cooled to bathing temperature by the addition of town supply cold water. The clarity of the water can change under some atmospheric conditions. The pools are emptied, cleaned and refilled on a daily basis. During the day there is a constant supply of fresh mineral water entering the pools. The bland, soothing, antiseptic action of sodium silicate makes this water very pleasing on the skin. An old local belief is that those who swim in the Rachel Spring water will receive ageless beauty!