The resort is built on a massive limestone plateau, which is part of one of the largest karst networks in the world.
The Aranzadi chasm, located in the vicinity, reaches a depth of over 1,400 meters.
The area is home to a protected colony of marmots frequently visible during the summer months.
The site hosts a section of the GR10 long-distance hiking trail that crosses the Pyrenees.
The resort's architecture was intentionally designed to resemble mountain chalets to harmonize with the limestone terrain.
La Pierre Saint-Martin is a high-altitude ski resort situated in the Pyrenees mountain range along the border of France and Spain. It features a vertical drop extending from approximately 2,153 meters to 1,527 meters. The resort sits within a karst landscape known for the Aranzadi chasm, one of the deepest cave systems globally. During winter, the facility offers 25 kilometers of alpine ski runs and 20 kilometers of Nordic ski trails. The resort serves as a hub for both winter sports and summer mountain activities including hiking and cycling. It is characterized by its integration into the Barétous Valley landscape.
The Arlas summit, accessible by the chairlift, providing a 360-degree view of the Pyrenees.
Bring high-altitude sunscreen, as UV exposure is intense even on cloudy days.
Check weather reports specifically for wind speeds, as high-altitude gusts can close ski lifts.
Wear footwear with sturdy grip for walking on the uneven limestone rock formations during summer.
Do not wander off marked trails in the summer, as the karst terrain contains dangerous hidden sinkholes and fissures.
Operates as a ski resort in winter and an outdoor activity center in summer; closed during the shoulder seasons of May and November.
Respect the marked trails to avoid damaging fragile karst cave ecosystems.
