Operated kilometres: 49,397 kilometres (Bilbao – Amorebieta section is the same for Bilbao – Bermeo and Bilbao – Donostia/San Sebastián; a branch line leaves Amorebieta to Urdaibai). Stations and/or halts at the following towns in Bizkaia: Bilbao (2), Etxebarri, Basauri, Galdakao (2), Bedia, Lemoa, Amorebieta, Muxika (2), Gernika (3), Forua, Busturia (3), Mundaka and Bermeo. Interchange with Metro Bilbao at Bolueta (Bilbao) and with EuskoTren small bus to Úsanoslo Hospital (Galdakao)

Apart from the daily service, there is a special service on Saturday nights in this line. Moreover, there are also night trains during the annual festival of Mundaka (June), Amorebieta (July), Gernika (August), Bilbao (Aste Nagusia - August) and Bermeo (September).