Which hot spring has the hottest water?

1. Norris Geyser Basin, Yellowstone. This tallest geyser in the world set the highest temperature ever recorded in the park. It's so far above sea level that the boiling point is 199°F rather than the sea-level 212°, but a hole drilled by scientists to 1,087 feet deep found a temperature of 459°F.



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Grand Prismatic Spring—Wyoming, USA Located in Yellowstone National Park, the Grand Prismatic Spring is the third-largest hot spring in the world. Its mesmerizing colors of orange, yellow, green, and blue are only one of its crowd-drawing attributes.

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The Blue Lagoon (Iceland) Perhaps the most famous hot spring in the world, the Blue Lagoon in Iceland is as soothing as it is picturesque. The water temperature hovers between 98 and 102 degrees Fahrenheit at all times, making it an inviting place to take a dip.

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