If ever you find yourself in the idyllic countryside village of Werfen, Austria, it would be a shame to miss their greatest attraction: the “World of Ice Giants.” The epically dubbed locale is actually a sprawling ice cave—the largest of its kind in the entire world.

Stretching a positively massive 26 miles in total, Eisriesenwelt, as it’s officially known, is about as magical a place as most could ever imagine. That’s why it’s one of the most visited places in Austria.

When you see and learn what makes it so special, you’ll be ready to book your trip!

Tucked into the mountainside above Werfen, Austria is the expansive ice cave, Eisriesenwelt, otherwise known as the “World of Ice Giants.”

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Once upon a time, it was believed that this cave, the largest of its kind in the world, was a doorway to hell. Now, it’s one of the most visited places in Austria, seeing around 200,000 visitors each year.

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Formally discovered in 1879, the cave grew in popularity over the course of the 20th century. Though there are 26 miles of caverns inside Eisriesenwelt, only about a mile is open to tourists.

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Scientists believe that the cave was formed when the Salzach river seeped through the limestone. Each year, new ice formation can be seen inside, making no two trips inside the same.

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Only about the first mile of the cave is covered in ice. After that, water isn’t able to creep in so easily, meaning the limestone remains uncovered.

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Given that the interior of the cave is cold enough for ice to form, it’s recommended that people bundle up if they’re visiting.

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The tour takes about 75 minutes, and each person is given a light so they can see every nook and cranny.

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The World of Ice Giants indeed!


Some of the most awesome places on Earth are the caverns and caves that weave into the sides of mountains. Eisriesenwelt has the benefit of being just a little bit cooler… literally!

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