Hoya de San Blas – San Blas Hermitage loop from Guadalix de la Sierra

Bike touring routes & trails

Spain

Madrid

Lozoya Somosierra

Guadalix De La Sierra

Hoya de San Blas – San Blas Hermitage loop from Guadalix de la Sierra

Hard

riders

Hoya de San Blas – San Blas Hermitage loop from Guadalix de la Sierra

04:21

45.5km

900m

Cycling

Hard bike ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.

Last updated: August 9, 2026

Tips

Your route passes through protected areas

Please check local regulations for:

Parque Nacional de la Sierra de Guadarrama

Parque Regional de la Cuenca Alta del Manzanares

Waypoints

Start point

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240 m

Parish Church of San Juan Bautista, Guadalix de la Sierra

Highlight • Religious Site

Berlanga's film "Welcome, Mister Marshal" was shot in this town in 1953. There are two churches in the film, one of which is fake, but the other is the town's own gothic church, which is well worth a visit.

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15.7 km

Hueco de San Blas, Guadarrama Mountains

Highlight • Viewpoint

There are few places as beautiful and few routes as accessible as the Hoya (or hollow) of San Blas.

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21.2 km

Los Palancares Reservoir

Highlight • Lake

Old reservoir, still in use today, although in a rather doubtful state of conservation. Small in size and often dry. However, around there are many fun paths and trails.

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22.6 km

GR-10 Parallel Trail, Parque Regional de la Cuenca Alta del Manzanares

Highlight (Segment) • Trail

26.6 km

Passage to Hueco de San Blas

Highlight • Trail

Important: the route is worth it on clear days. It's best not to go up in fog.

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29.1 km

Hoya de San Blas

Highlight • Gorge

This natural enclave is located in the municipalities of Manzanares el Real and Soto del Real. Beautiful views.

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32.5 km

San Blas Hermitage

Highlight • Religious Site

The Hermitage of San Blas, more than a hermitage, is a small stone construction that houses the image of San Blas.
It is located on a promontory surrounded by large …

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