Casla brings together a variety of interests: hiking trails of very different lengths, karst landscapes at the foot of the Sierra de Guadarrama, religious buildings and stargazing. The patron saint festivities in September also shape the town. Whether you want to focus on nature, cultural heritage or the night sky, you’ll find specific starting points here to help plan your trip. Casla is on the N-110.

Hiking Trails and Starry Skies

The Senda del Caslilla is 7.10 kilometres long, connects Sigueruelo with Casla and passes through the Sierra Norte del Guadarrama Natural Park. The landscapes along the route include riverside areas, limestone escarpments, gorges and caves, including Cueva del Ranchón. This makes it possible to appreciate the trail not only by its length, but also by its distinctive landscape features.

The Senda de los Pastores is on a very different scale: it is 154.90 kilometres long and passes through Casla. Comparing it with the Senda del Caslilla makes the difference between the two routes clear. The Senda de los Pastores is also certified by the Starlight Foundation for the quality of its night sky.

The Mirador de estrellas is another place to enjoy the starry sky. It is located in the municipality of Casla and is part of the network of stargazing sites in the province of Segovia. The trail and the viewpoint are therefore two distinct points of interest for anyone interested in the night sky.

Karst Landscape at the Foot of the Sierra

Near Casla, at the foot of the Sierra de Guadarrama, you’ll find limestone karst landscapes. Features found here include caves, rock overhangs, sinkholes and underground rivers. Sinkholes are funnel-shaped depressions in the ground; they add to the picture of a landscape shaped by both visible rock formations and underground watercourses.

The Río Caslilla rises in the municipality of Casla. This geographical feature adds the source of a river to the landscape description; its name also appears in the name of the Senda del Caslilla.

Churches, Traditions and Local History

The Iglesia de San Pedro Apóstol stands in the town centre. Its presbytery unusually faces north. This distinctive orientation is a specific detail to look out for when exploring Casla’s cultural heritage.

The Ermita de Nuestra Señora de la Estrella, Casla’s patron saint chapel, stands among juniper trees and elms at the foot of the Sierra. Its religious history is also associated with a particular name: until around 1665, the Virgin associated with the chapel was venerated as Nuestra Señora del Estepar. The approximate date refers to this earlier form of veneration.

Another way to explore the region’s history is through the Cañada Real Soriana Occidental. It passes through the municipality of Casla and bears witness to its transhumant past. Transhumance is the seasonal movement between grazing areas; the Cañada thus links the landscape with a historic form of pastoral land use.

Patron Saint Festivities in September

The annual patron saint festivities in honour of the Virgen de la Estrella are usually held from 9 to 14 September. The municipality offers an extensive cultural programme for residents and visitors. Dates and programme may vary from year to year. If you’re planning your trip around the festivities, check the dates and programme in advance.

Discover More Destinations

Cabanillas, Fresno De Cantespino, San Miguel de Bernúy, La Lastrilla, Grajera, Domingo García, Brieva, Migueláñez

For the main travel overview: Segovia.