The Euripus Strait is a narrow body of water located between the island of Evia and the mainland of Greece. It connects the Aegean Sea to the Euboean Gulf and is known for its strong tidal currents, which can change direction several times a day. This strait is approximately 40 kilometers long and varies in width, with some sections being less than 1 kilometer wide. The Euripus Strait has historical significance, as it has been a vital maritime route since ancient times, facilitating trade and travel in the region.