La Pedriza

La Pedriza is a granite massif within the Sierra de Guadarrama national park where weathering has worked the rock into rounded domes, stacked blocks, slabs and labyrinths of boulders, giving names to formations across the area and making it one of the most important climbing and scrambling grounds in central Spain, with thousands of routes. The Yelmo, a great dome visible from far off, is the landmark. It also holds a Spanish imperial eagle population and one of the larger griffon vulture colonies in the region. Access by car is capped at a daily number of vehicles because of pressure from Madrid; once the quota fills the road closes and visitors must walk in from Manzanares el Real.

What you actually see

• The granite domes - weathered rock shaped into slabs, stacks and labyrinths.
• El Yelmo - the largest dome, visible across the valley.
• The vulture colony - griffon vultures nesting on the cliffs.
• The boulder mazes - passages between blocks used for scrambling.

When to go

Spring and autumn for the best walking; summer brings extreme heat on exposed granite and severe fire restrictions. The vehicle quota fills by early morning on weekends and holidays, sometimes before eight.

Honest expectations

The daily car quota is real and enforced, and arriving late means walking several kilometres in or turning back. There is no shade on the rock and no water on most routes. Scrambling here is easy to underestimate, and rescues are frequent.

Nearby

Manzanares el Real and its castle are below; the Guadarrama peaks lie north.