Wild lavender

Spanish or Iberian lavender, Sierra de La Cabrera.
On the old GR10, the long distance footpath from Valencia to Lisbon (the new path goes north just before here and takes a radically new route north of the Sierra - no idea why they changed it - ), crossing the entire peninsula. Actually hardly anyone attempts this, such is the alternative lure of the many pilgrimage routes to Santiago de Campostela.