The route joins de localities of the Vall de Boí, passing thrigh all the Romanesque churches and hermitages declared World Heritage by Unesco. From Barruera, and following the traditional roads, Erill la Vall, Boí, Taüll, Boí, Durro, Saraís, Cóll, Cardet and again Barruera are interconnected consecutively. The route starts in Barruera, next to the church of Sant Feliu, to take the road to Erill which takes us up to its Romanesque church. From ther it continues to Boí on the old road, where a branch to and from Taüll must be taken, where we still visit the churches of Santa Maria and Sant Climent. Again in Boí, we continue ont the road of the Pago that goes to Durro. In Durro we continue, to visit the hermitage of Sant Quirc, to then take the bridle path that leads to the deserted town of Saraís, from where we will go down to Pont de Saraís, again now on the valley floor. From there, another new branch to and from the church of l'Assumpció de Cóll we will ascend and descend again to Pont de Saraís. After climbing to Cardet to see the church of Santa Maria, we arrive once again in Barruera.
Very demanding itinerary, only for expert runners in good physical shape, which runs on the traditional roads of the Valley floor.