Best attractions and places to see around Pas-Iguña include a variety of natural landscapes, historical sites, and unique architectural works. The region, often associated with Arenas de Iguña in Cantabria, Spain, features mountain peaks, natural monuments, and significant man-made structures. Visitors can explore high mountain passes, abandoned railway infrastructure, and scenic waterfalls. The area offers diverse points of interest for those seeking outdoor exploration and cultural insights.
Last updated: May 9, 2026
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La Matanela Pass, 1,005 m. Border between Burgos and Cantabria, Meseta and Pas. From Burgos, it's known as La Magdalena. I copied the altimetry from altimetrias.net, which can be trusted.
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Quiet place, interesting views.
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A demanding but VERY beautiful route. The Estacas de Trueba pass is absolutely spectacular!
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Yera Station is an old railway station located in the municipality of Vega de Pas, Cantabria. It was part of the Santander-Mediterranean railway project, which was never completed. The station is abandoned and is located near the northern mouth of the Engaña Tunnel. In 2022, the Government of Cantabria approved a rehabilitation project to convert the station into a hostel, exhibition hall and restaurant, with the aim of promoting sustainable tourism in the area. This project also includes the creation of a cycle and pedestrian path to the tunnel.
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The route to the tunnel begins at the ruins of the Yera station, near Vega de Pas. Along the way, you can see waterfalls, Pasiegan huts and remains of old barracks used by the Republican prisoners who worked on the construction of the tunnel. It is a route of approximately 18 km, well signposted and suitable for hikers of all levels.
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The Pozos de Noja, known for its two artificial lagoons, the result of the industrial legacy of the old electricity company in the area, are proud to present their latest tourist innovation: a swing and a giant bench, unique spots for contemplating the landscape but also promising to be the setting for countless memories and photographs that will capture the essence of Cantabria. Access via SENDA DE TUERRA, with a bicycle path to the wells.
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The panoramic views from the top are spectacular
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The Spa is located in Las Caldas de Besaya, which belongs to Los Corrales de Buelna, and this name is due to the hot spring that flows nearby, already known since Roman times (warm waters). On November 15, 1753, the old "Camino de las lanas" or "Camino de las harinas" that ran through this point and along the Besaya, reached the rank of "Camino Real" significantly improving the transport conditions of Castilian products. that were heading to our coastal ports, for export abroad. The building is next to the railway stop across the old donkey back bridge. Years later, the main road would pass through and all of this contributed to facilitating the communications of the Spa, although at the moment they are all in disuse but the number of travelers has not decreased for this reason and they are still very crowded. The spa was built in the mid-19th century together with the hotel, guest house and casino, which was formerly an annex building. Today it is restored, being considered the oldest in the region and continues to receive those who want to benefit from its mineral-medicinal waters.
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The region offers diverse natural beauty. You can visit the impressive Castro Valnera Summit, the highest point in the eastern Cantabrian mountain range, offering spectacular views. Another highlight is the Churrón de Borleña Waterfall, a beautiful cascade accessible via an easy forest path. Don't miss Pozos de Noja, known for its two artificial lagoons and scenic views, or the Waterfalls on the Senda del Río Engaña, a beautiful path along the river with several impressive waterfalls.
Yes, Pas-Iguña is rich in history. Explore the unique Yera ghost station, an abandoned railway station with a large concrete platform and 32 arches, part of the unfinished Santander-Mediterráneo railway project. Nearby, you can also find the Engaña Tunnel, another significant remnant of this railway. The Estacas de Trueba Pass also features ancient, hand-carved Castilian stone signage.
The area is perfect for outdoor enthusiasts. You can enjoy various cycling routes, including road cycling, touring, and gravel biking. For example, explore the 'Mata, Arenas de Iguña, Santiurde de Toranzo – circular route' for road cycling, or the 'Caves of Puente Viesgo and Vía Verde del Pas - round trip' for touring. Gravel biking options include a 'Gravel loop in Saja-Besaya natural park'. Find more details on these activities in the dedicated guides for Road Cycling, Cycling, and Gravel Biking around Pas-Iguña.
Absolutely! The Churrón de Borleña Waterfall is an easy and picturesque walk suitable for families. Pozos de Noja, with its artificial lagoons and new swing and giant bench, offers a fun and scenic spot for all ages. Additionally, the Las Caldas de Besaya Spa is listed as family-friendly and provides facilities.
From high points like Castro Valnera Summit, you can enjoy wonderful panoramic views, often extending to the Cantabrian coast on a clear day. The Estacas de Trueba Pass also offers good views of the valley, while Pozos de Noja provides elevated perspectives of its lagoons and the Santander coast.
The Saja-Besaya Natural Park is an extensive natural area in Cantabria. While not a specific highlight in the immediate Pas-Iguña data, it's a significant regional park known for its natural wonders. It's home to unique features like the Fallen Oak of Brujilices (Roble Tumbao) in Ucieda, a singular tree with a remarkable shape. The park offers opportunities for nature lovers to explore forests and diverse landscapes.
Beyond Pas-Iguña, the broader Cantabria region boasts several notable natural monuments. These include the Ojo Guareña Natural Monument, known for its cave systems, and the famous Caves of Altamira and El Soplao, offering insights into prehistoric art and unique geological formations. Cabarceno Natural Park is also a well-known attraction with over 1,000 animals.
Visitors frequently praise the stunning views from mountain passes and summits, especially the panoramic vistas from Castro Valnera Summit. The unique historical aspect of the Yera ghost station and its impressive architecture is also highly appreciated. Many enjoy the peaceful and scenic walks to natural features like the Churrón de Borleña Waterfall and the Waterfalls on the Senda del Río Engaña, particularly in spring when the river is full.
Yes, for experienced adventurers, the ascent to Castro Valnera Summit is considered challenging, especially in wet or snowy conditions, due to steep crags. The descent from Castro Valnera to La Pirulera is also described as a strong and technical descent. The Engaña Tunnel area can also involve challenging terrain.
The Santander-Mediterráneo railway project was an ambitious undertaking that was never fully completed. Its legacy is visible in sites like the abandoned Yera ghost station and the Engaña Tunnel. These sites offer a unique glimpse into a significant piece of industrial history, with the Yera station being the last structure built before the project was abandoned.
The Las Caldas de Besaya Spa is a historical settlement that offers facilities and is considered family-friendly. While many attractions are natural or historical ruins, nearby towns and villages will provide amenities. The Parish Church of Saint George in Arenas de Iguña, a neoclassical church mimicking the Roman Pantheon, is another notable architectural work in a settlement.
While the region offers beauty year-round, the Waterfalls on the Senda del Río Engaña are particularly spectacular in the rainy season when the river has more water. Summer offers a chance to shelter from the sun in the cool of the trees along river paths. For mountain summits like Castro Valnera, clear days are recommended for the best views, as fog can descend quickly and make conditions dangerous.


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