From the Romanesque bridge at San Nicolás de Bujaruelo, an east–northeast path leads up to the Puerto de Bujaruelo pass on the border with France (3½ hours, 950m ascent). From the pass you can, if you wish, continue down to Gavarnie village in about three hours, or over to the Refuge des Sarradets (about 1½ hours), gateway to the Brecha de Rolando pass back into Spain.