2 stops in walking order

Mountain

Roland's Breach is the name of a natural gap, 40 m across and 100 m high, at an elevation of 2,804 m in the Pyrenees on the border of Aragón, northern Spain, and Hautes-Pyrénées, southwestern France. The gap is situated in the Ordesa y Monte Perdido National Park on the Franco-Spanish border, close to the steep cliffs of the Cirque de Gavarnie. According to one legend, Roland's Breach was cut by Count Roland with his sword Durendal in an attempt to destroy the sword, after being defeated during the Battle of Roncesvalles in 778. In a variant of one of the legends associated with Salto de Roldán, a rock formation about 25 km (16 mi) north of Huesca, Roland, the foremost of Charlemagne's paladins, was being hotly pursued by Saracens, the Muslim Arab occupiers of Spain. Cornered at Salto de Roldán, he escaped by leaping the chasm on horseback from one of the crags to the other; the horse died in the attempt. Roland continued northward on foot, and smote the Pyrenees with his sword to create Roland's Breach, so that he could see France one last time before he died. The provenance of this myth is unclear as the Cirque du Gavarnie is approximately 150 km East South East from the Roncesvaux Pass where the legend of Roland is based. The gap can be reached from the Refugio Sarradets, a nearby mountain shelter, in about an hour's climb.

~20 min at this stop

National Park

The Grotte Casteret, also known by its Spanish names Gruta de Casteret or Gruta Helada de Casteret, is a limestone ice cave, located high in the Spanish Pyrenees, within the Ordesa y Monte Perdido National Park. Discovered in 1926 by Norbert Casteret, it is known for its Grande Salle (Great Hall) which has a frozen lake some 2,000 square metres (22,000 sq ft) in area, its ice formations, and a 20 metres (66 ft) ice wall into a second chamber.

~20 min at this stop