A few kilometers away from Archangelos, the seaside village of Plytra, with its golden sand and the ouzo that stretch tables next to the sea, hid in its waters a secret: The immersed state of Ancient Asopos. The ruins of the city, which sank in 365 AD from a powerful earthquake, you will see them where you are swimming – the waters are so crystal-clear that you do not even need a diving mask (although it would certainly not be a bad idea to take one with you if you want to take a look at them close).