Circular route of 3.1 Km. from Sant Miquel de la Vall. Walking to Sant Gervàs Castle along the old horseshoe path allows you to relish all its charms little by little. The old road, an example of traditional dry stone work, winds up the hill. As you gain height, one of the best panoramic views of the northern slope of Montsec de Rúbies, the Barcedana Valley and Terradets opens southwards.