Almost at sea-level, Vlihada is one of the most beautiful lacustrine caves in the world. Its total area is 33,400 sq. m, of which corridors amounting to 5,500 sq.m. have been explored.

      Its existence was known since 1900, but it was first explored in 1950 by Ioannis Petrohilos. Further investigation has brought to light animal fossils dating two million years.

     The temperature in the interior varies between 16 and 20 C, and that of the water is 12 C. Tours are by boat, and in one part by foot. A tour through the lacustrine part (2.5klm) stays indelibly on the mind, as the boat glides between dream-like formations of stalagmites and stalactites and their reflections upon the water; pink and white chambers, hanging fairy-beds, and much, much more......