A Geological Marvel in Kalavryta
Near the village of Kastria in Achaea, just 17 kilometres from the historic town of Kalavryta, lies the Cave of the Lakes. This is a mysterious masterpiece of nature that captivates visitors with its rare, terraced lakes, which extend across three distinct levels within its depths.
A Rare Geological Phenomenon
The cave is, in fact, the old bed of an underground river, with an explored length reaching 1,980 metres. What makes it unique in the world is its thirteen successive, terraced lakes. These formations create natural dams and waterfalls, offering a spectacle of unparalleled beauty amidst forests of stalactites and stalagmites.
Touring the Galleries
Entry to the cave is via an artificial tunnel that leads directly to the second floor. The tour is comfortable and safe, as access the passage over the crystal-clear waters of the lakes is via elevated artificial bridges. The lighting highlights the strange stalactite formations, which resemble sculptures crafted by the water over the centuries.
Historical and Biological Finds
The cave also holds exceptional archaeological interest. On the lower level, fossilised human remains have been discovered, as well as remains of various animals, including a hippopotamus. Due to its uniqueness, this section is intended to operate as a biospeleological laboratory of international renown.
After a day filled with exhilarating activities on the slopes of Mount Helmos or at the ski centre, a visit to the Cave of the Lakes is the perfect opportunity to uncover the subterranean secrets of Achaia.
A Rare Geological Phenomenon
The cave is, in fact, the old bed of an underground river, with an explored length reaching 1,980 metres. What makes it unique in the world is its thirteen successive, terraced lakes. These formations create natural dams and waterfalls, offering a spectacle of unparalleled beauty amidst forests of stalactites and stalagmites.
Touring the Galleries
Entry to the cave is via an artificial tunnel that leads directly to the second floor. The tour is comfortable and safe, as access the passage over the crystal-clear waters of the lakes is via elevated artificial bridges. The lighting highlights the strange stalactite formations, which resemble sculptures crafted by the water over the centuries.
Historical and Biological Finds
The cave also holds exceptional archaeological interest. On the lower level, fossilised human remains have been discovered, as well as remains of various animals, including a hippopotamus. Due to its uniqueness, this section is intended to operate as a biospeleological laboratory of international renown.
After a day filled with exhilarating activities on the slopes of Mount Helmos or at the ski centre, a visit to the Cave of the Lakes is the perfect opportunity to uncover the subterranean secrets of Achaia.










