Champagne Pool, North Island, New Zealand

Champagne Pool is a prominent geothermal feature within the Waiotapu geothermal area in the North Island of New Zealand. The name Champagne Pool is derived from the abundant efflux of carbon dioxide (CO2), similar to a glass of bubbling champagne. The colourful deposits are in sharp contrast to the grey-white silica sinter surrounding Champagne Pool. Its crater is around 65 m in diameter with a maximum depth of approximately 62 m and is filled with an estimated volume of 50,000 m3 of geothermal fluid.