Janska dolina, National nature reserve in Liptovský Mikuláš District, Slovakia.
Janska dolina is a protected nature reserve in the Low Tatras region featuring thermal pools, limestone cliffs, and varied landscapes. The valley contains different natural habitats and geological formations ranging from forested slopes to open karst terrain.
The area received protected status in 2004 as a national nature reserve and was designated as a wilderness zone following international conservation standards. This protection acknowledged the valley's ecological importance and role in preserving the region's natural heritage.
The thermal springs here have long attracted people seeking their healing properties, shaping how locals and visitors experience the valley. The geothermal features remain central to how the place is used and valued today.
Several hiking trails cross the reserve and connect major natural features to parking areas and nearby roads. Visitors should wear sturdy footwear and come prepared for changing mountain weather conditions.
The terrain includes Ohnište Hill with a distinctive rocky opening that resembles a natural window carved into stone. This geological feature allows visitors to view the surrounding karst landscape through a uniquely framed perspective.
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