The Evpalineio Aqueduct is one of the most significant works carried out under Polycrates. Even today, one is filled only with admiration for the skill of the man from Megara in digging this tunnel-aqueduct.Â
The task took a number of years, and the tunnel has a total length of 1,350 meters. There is a portal with an inscription at the entrance to the tunnel, through which one can see the ruins of a Byzantine church deep inside the dripping crevasse. The other opening, on the other side of Mount Kastri, is 1.70 m high. Today, it is not possible to cross the whole tunnel because a part of it has collapsed.