Worlds Largest Geothermal Pools | Hot Springs | Location

world's largest geothermal pool frying pan lake new zealand

In this article, I will answer where the world’s largest geothermal pool is located and the top 3 largest hot springs globally. I will give you a brief history of each Geothermal pool, also called hot lakes, and cool information about each of these beautiful landmarks. You will learn about the Boiling Lake, Grand Prismatic Spring, and the Frying Pan Lake.

World’s largest geothermal pool / Hot spring, and In Which country is it located?

The world’s biggest geothermal pool is found in New Zealand and is known as the Frying Pan Lake.

 It’s the world’s biggest hot spring. It’s found within the Echo Crater of the Waimangu Volcanic Rift Valley. Its acidic liquid sustains a heat of approximately 50–60 ° C. The Lake reaches 38,000 square meters in a portion of the volcanic cavity, and the shallow pool is barely 18 feet in depth; at the vents, it can be as deep as 60 feet.

Geothermal pools, additionally called hot lakes, occur in most nations and on every continent, including Antarctica. A geothermal lake is created when the underground liquid is geothermally warmed and made to rise from Earth’s crust. Some of these lakes carry moderately heated water that is safe to bath in, while others remain extremely hot and can quickly cause burns or deadly injury. Geothermal pools are habitats to various, unique species that are not found elsewhere on the planet. The world’s largest geothermal pool is located in New Zealand and is called the Frying Pan Lake.

Top 3 Largest Hot Spring / Geothermal Pool

For generations, the world’s largest geothermal pool was debated, but with all certainty, it is the Frying Pan Lake in New Zealand. Two other hot springs that come near the frying pan lake; are the Boiling Lake in Dominica and The Grand Prismatic Spring in Yellowstone National Park, Wyoming.  

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In order size, here are the three largest Geothermal Pools:

  1. The Frying Pan Lake in New Zealand
  2. The Boiling Lake in Dominica
  3. The Grand Prismatic Spring in Wyoming, United States Of America

Frying Pan Lake New Zealand

The Frying Pan Lake is too hot for swimming or other recreational usages, as the name suggests, with water temperatures averaging 120 degrees Fahrenheit. The area covered by it is approximately 38,000 square meters and stands roughly 18 feet deep by the shallow point and 60 feet deep by the deep point. Several acidic springs fill the Lake.

world's largest geothermal pool frying pan lake new zealand

The Lake is constantly steaming and may appear as if it is boiling due to the hydrogen sulfide and carbon dioxide gas bubbling to the surface of the hot spring.

Inside Echo Crater of the Waimangu Volcanic Rift Valley on New Zealand’s Northern Island, you can find the Frying Pan Lake.

Within the Waimangu Rift Valley, you can find the lake Rotomahana, Waimangu Geyser, and the white and pink Terrence.

The Maori word for black water is Waimangu, and the name of this area refers to the black water that the Waimangu Geyser ejects.

frying pan lake waimangu

Frying Pan Lake Formation and History

The most deadly Volcanic eruption in New Zealand’s History (since European arrival) occurred in 1886 when the Rotorua area was rocked with an Earthquake.

Many settlements were buried or destroyed, and about 120 people died, forming the Echo Crater in the process. Craters formed can be found from the Souther Crater to Mount Tarawera.

Rain partly filled cavities, and the groundwater became heated after the eruption. The eruption destroyed the famous Pink and White Terraces, villages, loss of livestock and lives.

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In 1917 April, a larger eruption in the Echo Crater created a larger crater which, when filled with hot water, became the current Frying Pan Lake in 1918.

frying pan lake hot spring

The Frying Pan Lake and the nearby Inferno Crater Lake are connected to the hydrothermal system’s cyclic nature. 

A complex rhythm has formed between the water levels of the lakes that repeat every 38 days.

Water levels and outflow in the frying pan lake increase whenever the Inferno Crater Lake water level and temperature decrease.

Boiling Lake in Dominica

The second-largest hot spring in the world is the boiling lake in Dominica. The boiling lake is located in the remote Morne Trois Pitons National Park in Dominica. The steam from the boiling lake makes it appear as a steaming pot on a stove. 

Two natural springs and rainfall are what supply the Lake with its water. Lava below the Lake heats the water to a boiling point causing the area around the Lake to be covered in thick clouds of steam, and a strong smell of sulfur lingers in the air. 

The landscape looks like it is from a different planet. The Boiling Lake is roughly 200-250 feet in width and is hard to access, requiring a long hike to get to it.

The History of Dominica’s is Boiling Lake

In 1870 two Englishmen, Mr. Watt and Dr. Nicholls, working in Dominica, had the first recorded sighting of the boiling Lake. A government botanist, Mr. H. Prestoe, and Dr. Nicholls, Investigated the geothermal Lake in 1875, measuring water temperature and depth. Along the Lake’s edges, the temperature was as high as 180 to 197 degrees Fahrenheit ( in Celsius 82 to 91.5 degrees). The center of the leak was actively boiling, so the temperature could not be measured, although the recorded depth is greater than 195 feet ( 59 m). 

boiling Lake Trail river in Dominica

 A geyser developed in the middle of the Lake, and the water level dropped in a later report. At its base, pumice was built from the geyser spewing water and mud as high as 60 feet in the air ( 18 m). The water level was shown 30-50 ft below the waterline in a photograph taken in 1895 when the boiling Lake was dry. In April of 1988, the level dropped by 29 ft when the Lakes stopped boiling; since then, it has returned to its normal conditions.

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The Grand Prismatic Spring in Wyoming Yellowstone National Park

The United States of America’s largest hot spring is the grand prismatic spring in Yellowstone National Park. The grand prismatic spring is also the third-largest geothermal pool globally, after the frying pan Lake of New Zealand and Dominica’s is boiling Lake.

grand prismatic spring yellowstone boardwalk hotsprings national park

You can find the grand prismatic spring in the Midway Geyser Basin, located in Wyoming.

Named for its beautiful coloration, the grand prismatic spring was noted in the Hayden Geological Survey of 1871 by geologists. Resembling colors of the rainbow, the grand prismatic spring can be seen with red, orange, yellow, green, and blue rings.

grand prismatic spring geothermal energy colors close up national park

History of the Grand Prismatic Spring

Early European explorers and surveyors are credited for the first records of the spring. In 1839 fur Trappers of the American Fur Company traversed the Midway geyser basin, noting the presence of a boiling Lake, presumably the grand prismatic spring, what’s a diameter of around 300 feet ( 90 m). A 50 foot( 15 m) geyser, named Excelsior later, was noted in 1870 by the Washburn-Langford-Doane Expedition when they visited the spring.

grand prismatic spring wyoming usa picture