The Corinth Canal connects the Gulf of Corinth with the Saronic Gulf in the Aegean Sea. It cuts through the narrow Isthmus Korinth and separates Peloponese from mainland Greece. The canal was dug through the Isthmus at sea level and has no locks. It is 6.4 km in length and only 21.4 metres wide at its base, making it impassable for most modern ships. Nowadays it has little economic importance and is mainly a tourist attraction.