Best natural monuments around Oña are found within a region characterized by diverse natural landscapes. Oña, in the province of Burgos, Spain, is situated within the Natural Park of Montes Obarenes-San Zadornil, featuring gorges and ravines carved by rivers. This area showcases a blend of Atlantic and Mediterranean climates, supporting varied flora and fauna. The setting provides a rich environment for exploring natural features and historical sites.
Last updated: July 28, 2026
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It is worth visiting the hermitage of Santa María de la Hoz, in the town of Tobera. To do this, we will cross a medieval bridge of Roman origin that spans the Molinar riverbed. The temple, almost embedded in a large rock, dates from the 13th century, features both Romanesque and Gothic elements, and has a portico with arches that offers good views of the surroundings. At its feet stands a second, tiny hermitage from a later date – the 17th century – which houses an altar dedicated to the Cristo de los Remedios.
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Authentic place of pilgrimage, a beautiful hermitage and surroundings.
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The Hermitage of Our Lady of the Sickle is nestled beneath the cliff, reached by crossing the small bridge over the Molinar River. Dating from the 13th century, it features both Romanesque and Gothic elements and has an arched portico offering fine views of the surrounding area. At its base stands a second, much smaller hermitage, dating from the 17th century, which houses an altar dedicated to Christ of the Remedies.
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Next to the greenway, a good place to rest and get supplies in town.
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One of the most beautiful mountains in the mid- and distant surroundings.
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nice descent, from mass moor, to right valley
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In the upper area of the Santa Engracia fortress, next to a beautiful viewpoint.
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Visitors often enjoy exploring the Hermitage of Saint Mary of La Hoz, a religious building nestled in a rocky cut within the Montes Obarenes-San Zadornil natural park. Another popular spot is Trespaderne, which offers natural landscapes along the Santander-Mediterranean Natural Trail. The Poza de la Sal Salt Flats and Old Railway Station also attract many for their historical and geological interest.
The area around Oña, situated within the Natural Park of Montes Obarenes-San Zadornil, is rich in diverse natural features. You can find impressive gorges and ravines carved by rivers like the Ebro, Oca, and Purón. Notable natural monuments include the Peñón Waterfall, offering beautiful cascades, and Humion, the highest summit in the Obarense mountains, providing expansive views.
Yes, the Peñón Waterfall is considered family-friendly. It's a beautiful spot with turquoise waters, especially during thaw or heavy rain, and can be a refreshing place to visit in summer. The natural park itself offers various paths suitable for different ages, though some areas might be more challenging.
The region around Oña is excellent for various outdoor activities. You can enjoy gravel biking on routes like the 'Oña Historic Town Center – Trespaderne loop' or 'Puentedey – Natural Rock Arch of Puentedey loop'. For road cycling, options include 'Oña Historic Town Center – Portillo de Busto loop'. There are also running trails such as the 'Frías and Ebro Natural Way Loop'. You can find more details on these activities in the Gravel biking around Oña, Road Cycling Routes around Oña, and Running Trails around Oña guides.
Yes, the Natural Park of Montes Obarenes-San Zadornil, where Oña is located, features an attractive network of paths suitable for hiking. The Trespaderne trail, part of the Santander-Mediterranean Natural Trail, offers a scenic route through canyons. For more structured routes, consider the 'Frías and Ebro Natural Way Loop' or the 'PRC-BU 95 Portillo del Busto Trail' which are popular running trails that can also be hiked. Explore more options in the Running Trails around Oña guide.
Several sites combine natural beauty with historical significance. The Hermitage of Saint Mary of La Hoz is a 13th-century religious building set within a dramatic rocky cut. The Poza de la Sal Salt Flats and Old Railway Station are a historical-artistic site where salt has been exploited since the Iron Age, offering insight into industrial heritage and medieval architecture.
The Natural Park of Montes Obarenes-San Zadornil experiences a blend of Atlantic and Mediterranean climates. While specific seasonal recommendations aren't provided, spring and autumn generally offer pleasant weather for exploring the diverse flora and fauna. For waterfalls like Peñón Waterfall, the thaw season or periods of heavy rain will present the most impressive views.
The terrain around Oña can vary. The Natural Park of Montes Obarenes-San Zadornil features gorges, ravines, and hills. Trails like Trespaderne are generally intermediate, following old railway lines which can be relatively flat. However, reaching summits like Humion (1,437 meters) involves more significant elevation gain. Some routes, particularly for cycling, are rated as difficult, indicating varied and potentially challenging terrain.
Visitors frequently appreciate the unique blend of natural beauty and historical significance. The dramatic setting of the Hermitage of Saint Mary of La Hoz, with its surrounding waterfalls, is often highlighted. The scenic routes along the Santander-Mediterranean Natural Trail near Trespaderne, and the geological and cultural interest of the Poza de la Sal Salt Flats, are also highly valued by the komoot community.
Yes, the Natural Park of Montes Obarenes-San Zadornil is a haven for biodiversity. The park is home to various species, including wild cats, otters, wild boars, and roe deer. It also hosts endangered species such as the European mink and the bearded vulture, making it an excellent area for wildlife observation.
Absolutely. The summit of Humion, at 1,437 meters, offers a true delight for the eyes with its expansive views of the Obarense mountains. Additionally, the Peñón Waterfall provides an incredible viewpoint of the Tobalina waterfall and the surrounding lush landscape.
Information about the Natural Park of Montes Obarenes-San Zadornil, which encompasses the natural monuments around Oña, is available at the Park House. This facility is conveniently located in Oña's former monastery cattle shed, providing details on the park's natural heritage and network of paths.


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