The best gravel rides in Montes Obarenes-San Zadornil

The Montes Obarenes-San Zadornil Natural Park features a network of over 20 marked gravel bike trails. These routes offer a diverse range of experiences, from moderate rides to more challenging adventures with significant elevation changes.

You'll encounter a varied landscape where the Cantabrian Mountains meet the Ebro Valley. Expect dramatic topography with deep gorges and canyons carved by rivers like the Ebro, Oca, and Purón. The trails traverse extensive forests of holm oaks, gall oaks, and pines, offering a mix of forest tracks, paths, and sections along former railway lines. Routes can range from mostly paved to unpaved segments with considerable elevation gains.

Yes, many of the gravel bike trails in Montes Obarenes-San Zadornil are designed as loops, allowing you to start and finish in the same location. For example, the Oña Historic Town Center – Trespaderne loop from Oña is a moderate 18 km route, and the more challenging Oña Historic Town Center – Ebro River Bridge loop from Oña covers 35.1 km with scenic views.

For those seeking longer rides, the Puentedey – Natural Rock Arch of Puentedey loop from Trespaderne is a notable option, stretching 78.1 km and typically taking around 5 hours 51 minutes to complete. Another challenging long route is the Oña Historic Town Center – Trespaderne loop from Trespaderne, which is 47.5 km long.

The region is rich in both natural beauty and cultural heritage. You can explore charming medieval towns like Oña, home to the exceptional Monastery of San Salvador, or Frías, known as the smallest city in Spain with its castle and hanging houses. Natural highlights include the dramatic gorges and canyons carved by rivers, and the Molinar River's waterfalls near Tobera, where the Hermitage of Saint Mary of La Hoz is nestled. Don't miss the Poza de la Sal Salt Flats or the Oña Gorge and Tunnels along the Santander–Mediterranean Railway Greenway.

Absolutely. The diverse topography of Montes Obarenes-San Zadornil offers numerous scenic spots. You can find breathtaking views of the Ebro River from places like the Mirador de San Martín de Don. Many routes also traverse mountain passes, such as Peñahorada pass, providing panoramic vistas of the surrounding forests and valleys. The Watchtower is another excellent viewpoint.

The region is generally pleasant for gravel biking during spring and autumn when temperatures are mild and the natural landscapes are vibrant. Summer can also be enjoyable, especially in the mornings or late afternoons, though some areas might be warmer. Winter riding is possible, but be prepared for cooler temperatures and potentially wet conditions, especially at higher elevations.

The area is highly rated by the komoot community, with an average score of 4.3 stars from 6 reviews. Reviewers often praise the diverse terrain, the stunning natural beauty of the gorges and forests, and the opportunity to explore charming historical villages. The variety of routes, catering to different skill levels, is also frequently highlighted.

Yes, Montes Obarenes-San Zadornil offers several challenging routes for experienced gravel bikers. These routes often feature significant elevation gains and technical unpaved sections. Examples include the Oña Historic Town Center – Ebro River Bridge loop from Oña and the Ascent to Sierra Arcena loop from Villanañe, both classified as difficult due to their demanding climbs and distances.

While specific public transport options directly to all trailheads might be limited, major towns within or near the Natural Park, such as Oña and Trespaderne, may have bus connections. It's advisable to check local bus schedules for routes connecting to these towns, which can serve as starting points for many gravel biking adventures.

Parking is generally available in or near the main towns and villages that serve as starting points for many routes, such as Oña, Trespaderne, and Villanañe. Look for designated parking areas within these communities, often near town centers or trail access points. It's always a good idea to arrive early, especially during peak seasons, to secure a spot.