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Spain
Castile and León
Ávila
Valle Bajo Alberche

Reserva Natural del Valle de Iruelas

The best hikes from bus stations around Reserva Natural del Valle de Iruelas

4.7

(122)

921

hikers

21

hikes

Bus station hiking trails around Reserva Natural del Valle de Iruelas offer access to a protected area characterized by its mid-mountain landscape in the Sierra de Gredos. The region features a significant altitudinal range, from the 730-meter banks of the Burguillo Reservoir to nearly 2,000-meter peaks like Cerro de la Escusa. Diverse forests, including black pine, oak, and chestnut groves, cover the terrain, while mountain streams and the expansive Burguillo Reservoir add to the natural features. The area is predominantly…

Last updated: May 16, 2026

4.7

(6)

29

hikers

#1.

Casillas – El Abuelo loop from Casillas

19.9km

06:53

740m

740m

Hard hike. Very good fitness required. Mostly accessible paths. Sure-footedness required.

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Hard

4.7

(3)

17

hikers

Moderate hike. Good fitness required. Mostly accessible paths. Sure-footedness required.

Moderate
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5.0

(1)

7

hikers

Moderate hike. Good fitness required. Mostly accessible paths. Sure-footedness required.

Moderate

Hard hike. Very good fitness required. Mostly accessible paths. Sure-footedness required.

Hard

Hard hike. Very good fitness required. Easily-accessible paths. Suitable for all skill levels.

Hard
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Tips from the Community

Alfonso
February 28, 2026, Puerto de Casillas – Entrance to Valle de Iruelas Nature Reserve

phenomenal

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0

1

A nice climb from the El Burguillo reservoir. The first part is asphalt in very good condition (as of November 1, 2025), and the second part is a dirt track, also in very good condition. It's a demanding climb; the asphalt section offers some flatter sections, but the dirt track is practically a continuous gradient of around 10%.

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1

Good bar

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0

Belen
September 14, 2025, El Castañar Forest

Simple and very beautiful route for all levels on bike or foot.

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0

0

Sylwia
December 19, 2023, Casillas

Casillas is a municipality in the province of Ávila, located at an altitude of 1012 m, at the beginning of the Tiétar valley. It is surrounded by an extensive forest of chestnut and oak trees. If you want to know its resin past, I recommend visiting the ethnographic museum of Resin, which has two exhibitions, in two large resin huts.

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3

0

It is a demanding climb but the end gives you life

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1

0

Picnic area with lots of shade. It has stone tables and a fountain.

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1

0

Old construction that represented a well where food was stored for all the inhabitants of this area of the Sierra de Gredos. The place is preserved and beautiful!

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2

0

Frequently Asked Questions

How many bus station hiking trails are available in the Reserva Natural del Valle de Iruelas?

There are over 20 bus station accessible hiking trails in the Reserva Natural del Valle de Iruelas, offering a range of difficulties from easy strolls to challenging mountain ascents. Most routes are of moderate difficulty, providing a good balance for many hikers.

What kind of landscapes can I expect on bus-accessible hikes in the Valle de Iruelas?

The bus-accessible hikes in the Valle de Iruelas traverse diverse landscapes, from the banks of the Burguillo Reservoir to mid-mountain terrain. You'll encounter lush black pine forests, ancient oak woodlands, and beautiful chestnut groves. The region is characterized by granitic rocks and offers stunning views of the wider Sierra de Gredos range.

Are there any circular routes accessible from bus stations?

Yes, several circular routes are accessible from bus stations. For a challenging option, consider the Casillas – El Abuelo loop from Casillas, which covers nearly 20 km with significant elevation gain. A moderate alternative is the Casillas – Casillas loop from Casillas, spanning over 13 km.

What are some notable natural features or landmarks I can see on these trails?

You can discover several natural landmarks. The El Abuelo Chestnut Tree and The Grand Chestnut of El Tiemblo are iconic natural monuments within the famous Castañar de El Tiemblo. You might also pass through the scenic Road through the Iruelas Valley or enjoy panoramic views from the Puerto de Casillas.

When is the best time of year to go hiking from bus stations in the Reserva Natural del Valle de Iruelas?

Spring and autumn are generally the best times to visit for pleasant temperatures and vibrant landscapes. Autumn is particularly enchanting for hikes through the chestnut groves, such as those around El Tiemblo, when the foliage turns golden. While each season offers unique beauty, summer can be hot, and winter may present challenges with snow at higher elevations.

Are there any trails that feature the famous chestnut groves?

Absolutely. The Reserva Natural del Valle de Iruelas is renowned for its beautiful chestnut groves. A fantastic option is the Castañar del Tiemblo – El Tiemblo Chestnut Forest loop from El Tiemblo, which is a challenging but rewarding route through these ancient woodlands.

What wildlife might I encounter on a hike in this region?

The Reserva Natural del Valle de Iruelas is a Special Protection Area for birds and a Special Area of Conservation. It's home to one of Europe's largest colonies of black vultures, so you're likely to see these majestic birds soaring overhead. Other species include the Iberian imperial eagle, black stork, otters, deer, and roe deer.

What do other hikers say about the bus-accessible trails in the Reserva Natural del Valle de Iruelas?

The komoot community highly rates the trails in this region, with an average score of 4.7 stars. Hikers often praise the stunning panoramic views, the diverse forest landscapes, and the opportunity to spot unique wildlife, especially the black vultures.

Are there any routes that offer significant elevation gain for a more challenging experience?

Yes, for those seeking a more challenging hike with significant elevation gain, the Casillas – El Abuelo loop from Casillas is an excellent choice. This difficult route features over 700 meters of ascent, providing a strenuous workout and rewarding views.

Can I find viewpoints with expansive vistas on these bus-accessible trails?

Many trails offer superb viewpoints. The natural viewpoint of Puerto de Casillas provides spectacular sweeping views of the entire valley and the Burguillo Reservoir. Additionally, higher elevation routes often open up to panoramic vistas of the Sierra de Gredos.

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