The Cave of the Dragon is located in the northern part of Kastoria, close to the lake of the region as well as the monastery of Panagia Mavriotissa.
The main characteristic of the cave is the large number and variety of stalactites and stalagmites. It includes 7 underground lakes, 10 halls, and 5 passages.
The big hall covers an area of 45x17 square meters and the temperature of the cave is 18 degrees Celsius all year round, regardless of the outside weather. The humidity of the cave is 90%. The Cave of the Dragon is one of the most impressive in Greece. It is also a great source of historic knowledge since scientists have found traces of human presence and a fossil of the "cave bear", which are 10.000 years old.
The cave was discovered during the '40s from local amateur explorers, while the systematic research from the Hellenic Institute of Speleological research started during the '60s. Thus, the parents in order to prevent their children from entering the cave came up with the story of a Dragon who guards the "treasure of the cave". This is actually the source of the name of the cave.