It is a remote and charming hamlet nestled on the northern slopes of the Cadí mountains within the boundaries of Cadí-Moixeró Natural Park. Set above lush forests, Gréixer consists of scattered stone houses and farmsteads surrounded by dramatic limestone cliffs and alpine pastures. Its privileged location provides spectacular views of the rugged Cadí ridge, making it a tranquil base for hikers and nature enthusiasts to explore untouched landscapes and biodiversity. Traditional rural architecture and agricultural terraces bear witness to a long history of high-mountain farming and shepherding. Close to Gréixer are ancient footpaths winding toward wild valleys and natural springs, inviting visitors to observe local flora and fauna—from chamois and roe deer to raptors and woodland birds. The village’s isolation and authenticity offer a rare glimpse into the mountain life and cultural traditions of the Pyrenees.
La Dou del Bastareny
There is parking.
Prat de Cadí, an ancient lake of glacial origin filled with sediments, now converted into a majestic meadow at the foot of the north face of the Cadí mountain range. Access by the Estana - Prat de Cadí - Canal del Cristall route: The total length of the route is 12 km, with an elevation gain of 1,100 m, and the journey requires approximately 5 hours for the ascent and descent. The excursion begins in Martinet, an area where the granite base of the axial Pyrenees is visible, and continues upwards along the road to Estana. Along this path, the route traverses the entire sequence of pre-Hercynian Devonian rocks, which have been displaced southward during the movement of the Cadí mantle. Travelers must pass through the village of Estana and park their vehicle at the Pallers pass parking area, situated at the edge of the natural park. By car, part of the significant elevation difference between the Cerdanya plain and the Cadí ridge is already overcome; this topographical transition mainly results from the subsidence of Cerdanya roughly 10 million years ago during the Miocene, which was shaped by a complex fault system.
Places of interest: Fonts del Llobregat. These are underground water springs, fed by snow and rain water. Church of Santa Maria de Castellar de n'Hug. It is a Romanesque church that preserves the characteristic bell tower, a four-storey tower with semi-circular arch windows and a 12th-century door with Romanesque fittings. It was transformed in the neoclassical era. Church of Sant Vicenç de Rus. It is an 11th-century Romanesque building, consecrated in 1106. It consists of a single nave, barrel vault and semicircular apse that shows Lombard arches on the outside. Completely renovated, it displays paintings from the 12th and 14th centuries. Asland Cement Factory, located in Clot del Moro, a municipal district of Castellar de n'Hug. It was a modernist factory promoted in 1901 by Eusebi Güell and Bacigalupi. It was the first industrial cement factory in Catalonia, and remained operational until 1975. In 1992, it was converted into the Asland Cement Museum, which is attached to the Museum of Science and Technology of Catalonia. In 2005 it was declared a Cultural Asset of National Interest. The Shepherd's House, also known as the Shepherd's Museum, with the history of this sector.