Bardenas Reales
 

Does anyone know much about the Bardenas Reales region in NE Spain? Part of the Basque country..... Im especially interested in access by 4x4

It's a National Park and circulation is restricted to a handfull of tracks, sometimes even for bicycles. Not worth to go there if you want to do offroading. It's a very fragile environment. Not that this stops the spanish air force to use parts of the park as a training zone for bomb drops.