Presa de la Parra from Pontón de la Oliva — circular trailrunning through the Cañada de la Caleriza

Based on komoot data, this trailrunning route typically takes around 2 hours and 3 minutes to complete. However, your actual time may vary depending on your pace and how often you stop to enjoy the scenery.

The route features a diverse terrain. You'll encounter approximately 12.8 km of unpaved sections, natural paths, and some paved surfaces (around 157 m). It includes hiking paths (8.32 km) and general paths (7.13 km), with segments of single-track, forest track, and even some asphalted track. The paths along the Lozoya River are generally well-maintained.

This trail is generally considered difficult for trailrunning due to its length (16.5 km) and significant elevation gain (370 meters up and down). It requires very good fitness and endurance. While some segments might be easier, the full circular route is a demanding run.

The route offers a mix of natural beauty and historical landmarks. You'll pass through the stunning Cañón del Río Lobos (GR-86) and by the historical La Parra Weir. You'll also see the Pontón de la Oliva dam, Madrid's oldest dam, and traverse areas with pine forests, riparian forests along the Lozoya River, and impressive limestone cliffs.

While specific parking details are not provided, the trail starts from Pontón de la Oliva. It's advisable to research local parking options near the Pontón de la Oliva dam or the Cañada de la Caleriza trailhead before your visit.

Yes, the trail is generally dog-friendly. However, it's always recommended to keep your dog on a leash, especially in areas with wildlife or other hikers, and to follow local regulations regarding pets in natural parks.

The scenery is particularly beautiful and varied. Late October is noted for its changing foliage, offering stunning autumn colors. Spring and early summer would also be excellent for milder temperatures and lush greenery. Always check weather conditions before you go.

There are no specific permits or entrance fees mentioned for accessing this trailrunning route. It is generally open to the public.

Yes, this route often coincides with sections of other long-distance footpaths. You'll find it intersects with parts of the Senderos del Jarama, Senda 2: Remontando el Lozoya hasta la Presa de la Parra, GR 300 - Senda del Genaro, and the GR-86 - Cañada de la Caleriza, among others.

The route offers a rich natural environment, especially along the Lozoya River, with lush riparian forests featuring species like ash and willow. You'll also pass through areas of jara (cistus) and monte bajo (low scrub), and pine forests. While specific wildlife sightings aren't guaranteed, the diverse habitat suggests opportunities to observe local fauna.

Absolutely! The trail is rich in history. You'll encounter the Pontón de la Oliva dam, Madrid's first dam built in the mid-19th century, and the Presa de la Parra. You might also spot the historic 'minas de ataque' (attack mines), which are horizontal galleries that served the Canal de la Parra, showcasing impressive historical engineering.