Lady Knox Geyser
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The Lady Knox Geyser is a geyser in the Wai-O-Tapu area of the Taupo Volcanic Zone in New Zealand. It is named after Lady Constance Knox, the second daughter of Uchter Knox, 15th Governor of New Zealand. The geyser is made to erupt on a regular basis by dropping soap into the opening of the geyser. Eruptions produce a jet of water reaching up to 20m and can last for over an hour.