El Tren Chiquito y la Vía Verde del Bidasoa Curiosity · Doneztebe/Santesteban, Baztan-Bidasoa, Navarra Image of Doneztebe/Santesteban, not of the place itself. The narrow-gauge railway known as "El Tren Chiquito" ("the Little Train") connected Irún and Elizondo between 1898 and 1956 through the Bidasoa valley. Its 44-km route was converted into a greenway (vía verde), inaugurated as such on 20 December 2013. 1898-1956; vía verde inaugurada el 20 de diciembre de 2013 Photo: Xabier (Tagzania user ID: 5319) (CC BY-SA 4.0) What to see and do in Doneztebe/Santesteban