The Nansa valley is located between the valleys of Liébana and Saja. A paradise for active, rural and ecological tourism with an important historical-artistic heritage. It was declared Cultural heritage of Cantabria, since it has a great landscape quality, due to its topographical characteristics of high peaks with several peaks exceeding 2000 meters of altitude, located in the Sierra de Pena Labra and the de Peña Sagra; extensive forests of indigenous trees, especially Oaks and beech trees, and low density population dedicated mostly to livestock.

There are four towns declared historic-artistic site, Tudanca, Carmona, Puebla Vieja of San Vicente de la Barquera and Bárcena Mayor, where all the features of traditional architecture are preserved.

The Valley has a lot of resources that make it very attractive for visitors . It is not easy to summarize everything that the traveler can visit but we can suggest some points of interest:



El Soplao Cave, discovered at the beginning of the 20th century, is considered to be one of the greatest wonders of Geology, and a true paradise for potholers (eccentrics, stalactites, stagmalites, gorges, columns, cave pearls, dog-tooth spars, etc.).

El Soplao is a treasure for all those who visit it. IThey can explore it during a route that is surprising due to the abundance, spectacularity and diversity of its eccentric formations, which are what make El Soplao “A Unique Cave”. A true play of shadows and lights and a festival of sensations.


Foundry of Cades was built in 1752, and its function was the production of iron using the hydraulic force of the water, which was in charge of moving decks and boots needed for the process .The foundry has been recently restored. It has an interesting museum related to the work of the ironwork.


Located in Riclones, it has seven rooms that it becomes in a journey through the history of the rural world in an entertaining way, with panels, videos and antique objects. Guided tour of an hour in which the traveller will be amazed, will smile and will know the past and the difficult living conditions of the Nansa region.


Located in the village of Riclones, was discovered by Manuel de Cos Borbolla in 1972. It has paintings and prints of excellent quality. The National Archaeological Museum in Madrid, has a showcase dedicated to this cave.


A route of 127.5 kms length that crosses the national reserve of Saja. The tour starts in Bárcena de Pie de Concha, and runs through forests of beech and oak, beautiful “ brañas” (high altitude grasslands), and some of the most beautiful and interesting rural villages of Cantabria, in 8 stages. Tudanca is the end point of the stage 3 and the start of stage 4.


The Hill of Sejos is located next to Uznayo and is a magnificent viewpoint over the depression of Polaciones. Besides, the port has a megalithic group of the age of bronze, composed of five large blocks – menhirs-sandstone carved, of which two have prints of some complexity



First of them, recently opened after a period of rehabilitation, It is located in the village of Estrada, belonging to the municipality of Val de San Vicente.

Cabanzon Tower is privately owned. He is currently in the process of restoration for Museum and tourist use. It is dated between centuries XII – XIV. and it is the oldest building of the village of Herreria.

Obeso Tower, also in course of restoration, is dated in the 14th century. It is also known as the “Torre mora”. It belongs to the municipality of Rionansa.