Serranillos Pass – Puerto del Pico Viewpoint loop from Arenas de San Pedro

Serranillos Pass – Puerto del Pico Viewpoint loop from Arenas de San Pedro

Hard

5.0

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Serranillos Pass – Puerto del Pico Viewpoint loop from Arenas de San Pedro

05:22

93.3km

2,120m

Road cycling

Hard road ride. Very good fitness required. Mostly well-paved surfaces and easy to ride. The starting point of the route is accessible with public transport.

Last updated: August 1, 2026

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After 48.9 km for 198 m

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Start point

Bus stop

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834 m

Castle of Arenas de San Pedro

Highlight • Castle

The most emblematic building of the town of Arenas de San Pedro, which is even found on its shield. Located in the heart of the town, it becomes a must-see during your stay in Arenas.
The castle is Gothic in style, built in the 15th century. Popularly known as “the Sad Countess” castle.

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17.3 km

San Esteban del Valle

Highlight • Settlement

It is a town at the foot of the mountains, in an area where the valley is very wide and where there are beautiful views of it and all the surrounding mountains.

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32.7 km

Serranillos Pass

Highlight • Mountain Pass

The Serranillos pass is one of the great classics of the Tour of Spain as it passes through the Sierra de Gredos. As the Vuelta has almost always ended in Madrid, the Gredos and Guadarrama mountain ranges offered very interesting alternatives to trace mountain stages in the last stages.
The port of Serranillos is very iconic in the Sierra de Gredos for several reasons: type of port (long and long), rough and irregular road (but in good condition) and dryland landscape with little vegetation (very typical of this inland area of the Iberian Peninsula).
The Serranillos port presents many climbing alternatives:
- On its eastern side, there are 2 alternatives: from Burgohondo (the classic one, along the main highway AV-913) and from Navalosa along the AV P-419 highway, which joins the previous one in Navarrevisca.
- on its west side, is where we will find more alternatives. I have come to count up to 5 alternatives. They are the following:
(1) climb through Santa Cruz del Valle, starting from the N-502 and taking the AV p-706 highway, to later reach San Esteban del Valle and from there to the top;
(2) leaving Mombeltrán on the AV-922 highway towards San Esteban del Valle and from there to the top;
(3) starting from Cuevas del Valle and passing through Villarejo del Valle on the AV P-706 highway, reaching San Esteban del Valle and from there to the top;
(4) starting from the N-502, in the middle of the climb to the Pico pass, taking a road that takes us to the Mirador de la Carretera del Sidrillo and to Esteban del Valle, and from there to the top;
(5) previously crossing the Pedro Bernardo port on the AV-922 highway
Although I have only done alternative 4 on the eastern slope by bike, they are all very similar. The slopes are gentle and the views, as there is little vegetation, cover a lot of territory.

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48.9 km

Charco de La Puente

Lake

54.1 km

Nice calm street and beautiful landscape

Highlight • Trail

Perfect Area for a little break

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57.5 km

Road to Hoyocasero

Highlight (Segment) • Cycleway

Great terrain, great views

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70.5 km

Puerto del Pico Viewpoint

Highlight • Viewpoint

Great view from the small parking lot opposite the source. Above all, you should have seen the old Roman road. A little uncomfortable but in good shape.

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78.2 km

Cuevas del Valle

Highlight • Settlement

It is a very beautiful small town where it is worth having a drink to enjoy its historic center and its summer atmosphere. To do this, it is necessary to deviate from the main road and enter its rustic streets.

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84.1 km

View of Mombeltrán Castle

Highlight • Viewpoint

The views of Mombeltrán Castle from the N-502 are truly spectacular, especially when coming from Arenas de San Pedro towards Ramacastañas. The castle stands atop a hill with the Sierra de Gredos mountains in the background, creating a very photogenic scene.

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