Natural monuments around Arnedillo are characterized by a diverse landscape shaped by the Cidacos River, nestled within the La Rioja Baja Valley Biosphere Reserve. The region features geological formations, thermal waters, and evidence of prehistoric life. These natural attractions offer opportunities for outdoor activities and observation of local flora and fauna. Arnedillo's setting provides a backdrop for exploring the area's natural heritage.
Last updated: June 17, 2026
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Famous for its Cuevas del Ajedrezado caves, the LR-115 highway passes through Santa Eulalia Somera and Santa Eulalia Bajera with the impressive sheer rock as a guide.
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Riding through the valley of the Cidacos River between the mountains of Bergasa and Cabimonteros with its dominant red rock towering above you.
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Enciso has been declared a Biosphere Reserve by UNESCO because 3,000 dinosaur footprints have been found here. This paleo-adventure park shows you interactively how these prehistoric animals lived millions of years ago. It also has swimming pools, geysers, adventure circuits, a climbing wall, a restaurant and two cafeterias.
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La Peña Isasa (1,474 m) is seen by many and few pass by, it is a limestone bastion that is well visible from the entire region of La Rioja Baja.
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Summit belonging to the Iberian Riojan system. It is very accessible since a track leaves you practically at its top, but it has many trails in its vicinity that make this peak a place to spend a nice day of hiking, trail running, mountain biking...
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Arnedillo offers a variety of unique natural monuments. You can explore the impressive Peña Isasa, a limestone bastion offering extensive views. For a blend of nature and history, visit El Barranco Perdido Paleo Adventure Park, known for its dinosaur footprints. Don't miss the Red Cliffs of Herce, which present a striking geological feature above the Cidacos River valley.
Yes, several natural sites around Arnedillo also hold historical importance. The El Barranco Perdido Paleo Adventure Park showcases over 3,000 dinosaur footprints, offering a glimpse into prehistoric life. The Arnedillo Hot Springs have been utilized for their medicinal properties since Roman times. Additionally, the Cuevas del Ajedrezado of Santa Eulalia Somera are ancient caves with historical significance, featuring unique square holes carved into their walls.
For breathtaking views, head to Peña Isasa, a summit that provides extensive panoramas across the entire La Rioja Baja region. The Vulture Viewpoint (Mirador del Buitre), located north of Arnedillo, offers an excellent vantage point to observe griffon vultures soaring over the Cidacos River canyon. The Red Cliffs of Herce also provide a distinctive visual spectacle as they tower above the valley.
The area around Arnedillo is rich in geological wonders. You can marvel at the dominant red rock formations of the Red Cliffs of Herce. The region is also famous for its dinosaur footprints (ichnites), particularly near Enciso and at sites like El Barranco Perdido Paleo Adventure Park, which offer a fascinating look into the Cretaceous Period. The entire Cidacos River Canyon, nestled between the Hez and Peñalmonte mountain ranges, is a significant geological formation within the Biosphere Reserve of La Rioja.
Absolutely! El Barranco Perdido Paleo Adventure Park is highly recommended for families, offering interactive exhibits about dinosaurs, swimming pools, and adventure circuits. The Arnedillo Hot Springs provide a relaxing and unique experience for all ages. Additionally, the Cidacos Greenway is perfect for pleasant walks or bike rides with children, allowing them to enjoy the scenic natural landscape safely.
The natural monuments around Arnedillo are ideal for various outdoor activities. You can enjoy hiking on trails like the "Peña del Castillo and Cidacos Greenway Loop" or the "Ascent to Peñalmonte." Mountain biking is popular, with routes such as the "Cidacos Greenway – Cidacos River Valley Viewpoint loop." For running, consider the "Arnedillo and thermal baths – Cidacos Greenway loop." You can find more details on these activities in the Hiking around Arnedillo, MTB Trails around Arnedillo, and Running Trails around Arnedillo guides.
Yes, there are excellent options for water activities. The Arnedillo Hot Springs (Las Pozas de Arnedillo) offer natural thermal pools where you can relax in mineral-rich waters. The Gollizo Pool (Jubera River) features a small but attractive waterfall and a pool suitable for swimming, providing a refreshing experience.
The region is part of the La Rioja Baja Valley Biosphere Reserve, making it an excellent spot for wildlife observation. The Vulture Viewpoint (Mirador del Buitre) is specifically designed for observing colonies of griffon vultures soaring overhead. The diverse forests and geological formations throughout the Cidacos River Canyon also provide habitats for various local fauna.
The natural monuments around Arnedillo can be enjoyed year-round. Spring and autumn offer pleasant temperatures for hiking and biking along the Cidacos Greenway and exploring viewpoints. Summer is ideal for enjoying the Arnedillo Hot Springs and swimming in the Gollizo Pool. Even in winter, the hot springs remain a popular attraction, and the landscape offers a different kind of beauty.
Yes, there are several accessible options. The Cidacos Greenway, a converted railway line, offers a relatively flat and scenic path ideal for easy walks and biking. For a moderate hike, consider the "Arnedillo and thermal baths – Hot spring pools loop from Arnedillo," which is also suitable for beginners looking for a slightly longer route. You can find more details in the Hiking around Arnedillo guide.
Visitors particularly appreciate the stunning views from places like Peña Isasa, the unique relaxation offered by the Arnedillo Hot Springs, and the educational and fun experience at El Barranco Perdido Paleo Adventure Park. The opportunity to immerse oneself in the diverse natural landscape of the Biosphere Reserve, whether hiking, biking, or observing wildlife, is also highly valued.


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