Hundido de Armallones Loop

This circular route is rated as difficult by komoot, covering approximately 23.4 kilometers with over 500 meters of elevation gain and descent. While some sections are relatively flat, expect significant uphill stretches and descents into the canyon, requiring good physical condition and adequate hydration.

The full circular route is estimated to take around 6 hours and 40 minutes to complete, not including stops for rest or enjoying the scenery.

The trail typically starts from the village of Ocentejo. Ocentejo serves as a good base, and you should be able to find parking within or near the village. It also has a tourist information office.

The terrain is varied, ranging from wide forest tracks to paths literally excavated beneath rocky overhangs. You'll traverse a deep canyon carved by the Tajo River, encountering impressive rocky formations and vertical walls. Expect both level sections and notable ascents and descents.

The most prominent feature is the Hundido de Armallones itself, a spectacular gorge formed by a massive 16th-century rockslide. You'll see huge rock formations in the riverbed, creating rapids and beautiful natural pools with striking turquoise waters. The trail also offers elevated viewpoints overlooking the canyon and stretches alongside the vibrant Tajo River.

The area is rich in biodiversity. Keep an eye out for birds of prey such as Bonelli's eagle, Egyptian vulture, griffon vulture, and peregrine falcon nesting in the vertical rock faces. Along the river, you might spot otters, kingfishers, and common trout.

While the Alto Tajo Natural Park generally allows dogs, it's crucial to keep them on a leash to protect wildlife, especially ground-nesting birds and other sensitive species. Given the trail's length and difficulty, ensure your dog is fit for a long hike and bring plenty of water for them.

Spring and autumn are generally the best times to hike this trail, offering milder temperatures and beautiful scenery. Summers can be very hot, making hydration critical, while winters can bring colder conditions. Always check the weather forecast before you go.

Generally, there are no specific permits or entrance fees required for hiking the Hundido de Armallones trail within the Alto Tajo Natural Park. However, always respect park regulations, especially regarding wildlife protection and fire prevention. During certain sensitive breeding seasons, access to specific areas might be restricted, so it's wise to check with the local tourist office in Ocentejo beforehand.

Yes, this circular route intersects with sections of other official trails. You will find yourself on parts of the Camino Natural del Tajo, the Georuta 1 «Ocentejo-Hundido de Armallones», and the Ruta Hundido de Armallones a Salinas y Pico Alar.

Yes, the turquoise waters of the Tajo River, particularly in the areas where the 16th-century rockslide created natural pools, are ideal for swimming. These spots offer a refreshing break, especially during warmer months.