Spain converted thousands of kilometres of disused railway into Vías Verdes — greenways with railway gradients, meaning effectively none. The Vía Verde de la Sierra in Andalusia is the show-stealer: 36 kilometres of tunnels and viaducts between white towns, with griffon vultures wheeling above the crag at Zaframagón. The tunnels are lit, but pack a backup light anyway. Spring paints the verges; hire bikes wait at the restored station in Olvera. Genuinely gentle, genuinely spectacular.
Featured in Ten cycling holidays for completely normal legs · Adventure