Herľany Geyser, Geyser in Herľany, Slovakia.
Herľany Geyser is a natural water fountain in Slovakia that erupts through a deep borehole in the ground. Water shoots up to 30 meters high during each eruption, and hundreds of liters of mineral water are released each time.
Workers drilling for mineral water in 1870 accidentally discovered this geyser when water burst dramatically from the ground. The natural phenomenon has continued to erupt regularly ever since, becoming a remarkable geological feature of the area.
The natural formation serves as an educational center where visitors learn about geothermal activities and their effects on the surrounding landscape.
The geyser erupts approximately every 32 to 34 hours, so planning ahead is important if you want to watch an eruption. Local information sources can help you time your visit to see this natural spectacle.
The water comes not from a hot spring but from rainwater that seeps underground and circulates through the rock layers. This cold-water mechanism makes it one of the rare geysers of its kind worldwide and demonstrates how nature creates such phenomena in unexpected ways.
Location: Herľany
Inception: 1987
Operator: RCOP Prešov
GPS coordinates: 48.80111,21.47750
Latest update: December 7, 2025 20:44
Geysers represent some of the most visible expressions of hydrothermal activity, occurring where underground water reservoirs are heated by magmatic sources. Yellowstone National Park in Wyoming holds more than half of the world's known geysers, including Old Faithful with its reliable eruptions...
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