Geothermic acidic and alkaline water from two hot mineral springs, flows into the 26 thermal pools at Polynesian Spa.

Acidic Water

Acidic water is pumped into the three Priest Spa pools from the adjacent shallow Radium hot spring. The spring flows from the ground where it is located and there is no control over the clarity and temperature in its natural state. 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.

Alkaline Water

The remainder of Polynesian Spa’s hot mineral pools are filled with slightly alkaline water. 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.