Obarra & Rio Isábena Posted on Posted on2019-10-062020-09-15By plushtigger It’s a wild one — the Rio Isábena Approaching Obarra from the south on the A-1605, the monastery is situated to the right, semi-hidden in a beautiful setting on the banks of the Isábena river. The valley then turns into a gorge with stunning rock formations and multiple short tunnels, making for a memorable ride. View of Santa María de Obarra from the A-1605 Read more about the Obarra Monastery on Wikipedia: Santa María de Obarra Gorge and rock formations immediately after passing the Obarra monastery. “A Riot of Autumn Colors (…)” — the A-1605 follows the Isábena for quite a while before then turning up into the mountains, towards the Alto de Bonansa plateau.