Vouliagmenis Avenue (Greek: Λεωφόρος Βουλιαγμένης) is one of the longest avenues in the Greater Athens area, stretching from central Athens to the seaside resort of Vouliagmeni. The total length is 21 km. The avenue begins at Athanasios Diakos Street and Michalakopoulou Street and the southbound portion of the avenue runs with three lanes to the southern portion of Athens and eastern Dafni. The two nearest Attiko Metro subway stations that lie within this avenue are Agios Ioannis, Dafni and Agios Dimitrios (opened in 2004) and part of the southern section of the Red Line runs underneath the avenue. It has an intersection with the road linking with the Hymettus Ring of the Attiki Odos motorway and Katechaki Avenue. It also has several intersections in Glyfada and with the Vari-Koropi Avenue.