Vouliagmeni Lake, in the heart of the Athenian Riviera, is the hidden treasure of Attica’s nature. Situated on an idyllic landscape, this rare geological phenomenon is waiting to be discovered. The lake’s brackish waters which are continuously replenished both by the sea and the underground thermal springs offer a natural and unique thermal spa experience.

The imposing rock, thermal waters, the labyrinthine underwater tunnels and the lush vegetation create a unique geological phenomenon. The lake’s present form was created after the roof of the cave fell because of erosion caused by the high temperature of the running water running. The lake is included in Greece’s national NATURA 2000 network and as a Site of Outstanding Natural Beauty by the Ministry of Culture.