Torhola grotta, Limestone cave in Lohja, Finland.
Torhola grotta is a limestone cave near Lohja stretching about 107 meters through the ground with three separate chambers. Narrow passages connect these spaces together, creating an underground network within the Karkali Nature Reserve.
The cave formed about 3000 years ago when water flowed through limestone and slowly dissolved it. This process created the underground system visible today.
The cave draws explorers and nature enthusiasts who appreciate its underground chambers and natural formations. Visitors experience the quiet below ground and gain insight into how water shapes rock over thousands of years.
A marked hiking path leads about one kilometer from the parking area on Karkalintie 759 to the cave entrance. Sturdy footwear and a flashlight are essential for safely exploring the underground chambers.
The surrounding forests contain rare elm and lime trees growing on nutrient-rich rocky hills. This specific plant combination is found in only a few places in Finland, making it botanically noteworthy.
Location: Lohja
GPS coordinates: 60.25222,23.85917
Latest update: December 12, 2025 12:06
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