Diro caves
- Glyphada (or Vlyhada)
- Its temperature fluctuates from 16°C to 20°C. The temperature of the water is around 12°C. Passages of about 5000m have been explored while its total extent is 33.4002. The existence of the cave has been known since 1900 and in 1949 it was explored by John Petrochilos. It is regarded as one of the most beautiful lake caves in the world. In its interior fossil animals have been discovered that existed 2 million years ago.
- Alepotripa
- It is situated 200m east of Glyphada and was discovered in 1958. It was explored by Mr. and Mrs. Petrochilos. The cave provides evidence of life in there 6.000 years ago and many exhibits are shown in the "Stone Age Museum" of Diros situated at the entrance of the cave. The extent of the cave is 6.5002, 6002 of which consists of land and the rest is covered by the water of an underground river. The average temperature of the cave is 19°C and of the water 18°C.
- Kataphygi
- It is located 500m on the left side of the road that leads to the former two caves. It has an area of 2.7002 and the length of its passages is 700m.