From Alto de Caballar, on clear days, you can see the Bay of Santander to the north, and the mountains of Campoo to the south. Also on the north side you can admire a magnificent oak tree. The bottom of the Valley of Villafufre, on the other hand, is dominated by eucalyptals and pine forests destined for logging that alternate with grasslands and stains of native forest
- Civil architecture: between the Modern Age stately residencies stands out the monumental House of Díez de Velasco, from 17th century, located in Bustillo, and the House of Domingo Herrera. Also the Portalada del Obispo should be mentioned, thought of as the entrance to a noble house in Vega, in 18th century.
- House-Library Lope de Vega: in Vega is the old manor that belonged to the father of famous poet and playwright. On its front yard is a heraldic roll crowned by an imperial eagle with the dates 1635-1935 that commemorates the 300th aniversary of his death.
- Religious architecture: although not the only example, the best exponent of religious heritage in the municipality is the Convent of La Canal (of Good Local Interest since 2003); it is a religious complex with a monumental two-storey entrance with coat of arms. Other notable temples are Saint Peter in Escobedo, San Juan Bautista in Villafufre and Saint Andrew in Vega.
- Alto de Caballar (2 hours): this hiking route from the town of San Martín to the Alto (648 m.) ascends alternating local forest located along the dells and cottages scattered in the pastures, until reaching pine and eucalyptus forests.
- The towns and neighbourhoods of Villafufre: this itinerary joins all of the villages in the municipality, east to west along the road, visiting chapels, churches, towers, stately houses, popular rural houses, etc.