Stages contributed by the Spanish Railways Foundation through its Greenways Program, currently developed by the Ministries of Agriculture, Fisheries and Food and Ecological Transition, in collaboration with Adif and Renfe Feve. It has 7,600 kilometers of railway lines in disuse or that never came to serve because the construction works were unfinished. These old railway routes have been conditioned to be traveled by cyclists and walkers, and are accessible to people with reduced mobility.