The Euskotren 900 series is an electric multiple unit train type operated by Euskotren in the Basque Country, Spain and up to Hendaye over the French border.
The Urdaibai line, also known as the Amorebieta–Bermeo railway is a 29.19 km mostly single-track branchline in Biscay, Basque Country. Owned by Euskal Trenbide Sarea, it runs from Bermeo to Amorebieta