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Spain
Basque Country
Biscay
Duranguesado

Ermua

The best MTB trails around Ermua

4.6

(370)

3,213

riders

114

rides

Mountain biking around Ermua offers diverse natural landscapes within the Duranguesado region, characterized by varied terrain and established trail networks. The area features significant mountain peaks like Urko and Ureta, providing a scenic backdrop and challenging terrain. Riders can expect a mix of terrains, from smoother paths to technical sections, catering to different skill levels. Notable natural features include Ariola Lake and Aixola Reservoir, with many mountain bike trails incorporating these scenic water bodies.

Best mountain bike trails around Ermua

  • The most popular mountain bike trail is Aixola Reservoir Loop, an easy 3.3 miles (5.3 km) trail that takes 26 minutes to complete. This route offers tranquil waters and woodland views around the reservoir.
  • Another top favourite among local mountain bikers is Ariola Lake Trail – Areitio Climb loop from Ermua, a moderate 15.0 miles (24.1 km) path. This route leads through varied landscapes including the Areitio Climb.
  • Local mountain bikers also love the Garai Village View – Mount Oiz Summit loop from Amaña, a 27.7 miles (44.7 km) trail leading through mountain terrain towards Mount Oiz, often completed in about 3 hours 58 minutes.
  • Mountain biking around Ermua is defined by mountains, valleys, and reservoirs, with easy routes as well as more challenging climbs. The network offers options for different ability levels, from easy rides to challenging routes.
  • The routes in Ermua are highly rated by the komoot community with an average score of 4.6 stars from over 300 reviews. More than 3000 mountain bikers have used komoot to explore Ermua's varied terrain.

Last updated: June 20, 2026

#1.

Aixola Reservoir Loop

5.33km

00:27

100m

100m

Easy mountain bike ride. Great for any fitness level. Suitable for all skill levels.

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Easy

4.4

(5)

36

riders

Moderate mountain bike ride. Good fitness required. Advanced riding skills necessary.

Moderate
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Hard mountain bike ride. Very good fitness required. Advanced riding skills necessary. Some portions of the route may require you to push your bike.

Hard

Moderate mountain bike ride. Good fitness required. Suitable for all skill levels.

Moderate

5.0

(3)

19

riders

Moderate mountain bike ride. Good fitness required. Suitable for all skill levels.

Moderate
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Popular around Ermua

Across the Basque Mountains - Vuelta al Duranguesado (GR 229)

By the sea and the mountains – Tour of Biscay (GR 123)

Road Cycling Routes around Ermua

Hiking around Ermua

Cycling around Ermua

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Gravel biking around Ermua

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Across the Basque Mountains - Vuelta al Duranguesado (GR 229)

Hiking Collection by

Claudia Aguilar González

Tips from the Community

anhell sky
May 21, 2025, Fuente de Ederra

Edwin, I've been drinking water from that spring for over 30 years. In fact, all of us in Berriz drink water from the springs in Oiz. I'd say it's some of the best water you can drink in the Basque Country, hehe.

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Nice picnic area, located in the forest, with picnic areas and barbecues. It is an ideal place to enjoy nature.

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Pau Arbat
April 22, 2023, Ermua Town Hall

Located in the Duranguesado region, the town of Ermua is known for its rich history and its beautiful natural landscape. Here you can enjoy the local gastronomy. The town's name may come from the Basque term Emuas, which means border area or terrain, due to its location on the dividing line between the provinces of Vizcaya and Guipúzcoa.

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Edwin
April 17, 2023, Fuente de Ederra

There is a fountain here and the views are quite good of the valley below. I'm not sure if the water is drinkable. It probably is, but I'm not sure I'd risk it.

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Sofía_Ibáñez
April 17, 2023, Ermua

Ermua is a medieval town located on the border between Vizcaya and Guipúzcoa. Located in the narrow valley of the Ego River and surrounded by mountains, this town has an interesting historical heritage, among which several palaces stand out.

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The Aixola reservoir is located between the provinces of Vizcaya and Guipúzcoa. It is surrounded by a beautiful landscape made up of shady pine, oak and beech forests.

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1

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From the dam you have beautiful views in both directions. Looking at the lake and the mountains behind it is very nice, but looking into the small valley is also nice.

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The path around the lake is very nice. In this place you will find beautiful views of the lake and a small fountain that almost always has water.

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1

0

Frequently Asked Questions

How many mountain bike trails are available around Ermua?

There are nearly 130 mountain bike trails around Ermua, offering a wide range of options for all skill levels. This includes 2 easy routes, 60 moderate routes, and 66 difficult routes.

What kind of terrain can I expect on mountain bike trails in Ermua?

Ermua's trails feature diverse natural landscapes, including significant mountain peaks and natural monuments. You can expect a mix of terrains, from smoother paths suitable for beginners to technical sections, drops, and jumps on more challenging routes. The area is known for its varied difficulty, graded using systems like the Single Track Scale (STS), ensuring options from S0-S1 for easy rides to S3-S6 for very technical sections.

Are there any easy mountain bike trails suitable for beginners in Ermua?

Yes, Ermua offers easy mountain bike trails perfect for beginners. A great option is the Centro BTT Debabarrena Ruta 2 – vuelta de embalse Ariola, an easy 5.3 km route that circles the scenic Ariola Lake and takes about 26 minutes to complete.

What are some challenging mountain bike routes near Ermua?

For experienced riders seeking a challenge, Ermua has several difficult routes. The Ariola Lake Trail loop from Errotabarri is a difficult 40.8 km path with extensive views. Another demanding option is the Garai Village View – Monte Oiz loop from Amaña, which covers 44.8 km and includes significant elevation gain.

What natural features or landmarks can I see while mountain biking in Ermua?

Many trails in Ermua incorporate the scenic Ariola Lake, a notable natural feature. The region is also characterized by its beautiful mountain peaks. You might encounter mountain passes like Alto de Karabieta or Alto de Ixua, and climbs such as the Areitio Climb. The Udalaitz Peak (1,119 m) is another prominent natural landmark in the wider area.

Are there any circular mountain bike routes in Ermua?

Yes, many mountain bike trails in Ermua are designed as loops, allowing you to start and end at the same point. Examples include the easy Centro BTT Debabarrena Ruta 2 – vuelta de embalse Ariola, the moderate Ariola Lake Trail – Areitio Climb loop from Ermua, and the difficult Ariola Lake Trail loop from Errotabarri.

What do other mountain bikers say about the trails in Ermua?

The mountain bike trails around Ermua are highly rated by the komoot community, with an average score of 4.6 stars from over 300 reviews. Riders often praise the diverse natural landscapes, the variety of terrain catering to different skill levels, and the scenic beauty, particularly around Ariola Lake.

What is the best time of year for mountain biking in Ermua?

Ermua's diverse natural landscape makes it suitable for mountain biking across various seasons. However, the best time often depends on personal preference for weather conditions. Spring and autumn generally offer milder temperatures and vibrant scenery, while summer can be warm. Always check local weather forecasts and trail conditions before heading out.

Are there any trails that pass by dams or reservoirs?

Yes, some routes in the Ermua area incorporate local water features. For instance, the moderate Aixola Dam – Ariola Lake Trail loop from Errotabarri offers views of the Aixola Dam as part of its route.

Are there any cultural or historical attractions near the mountain bike trails in Ermua?

While primarily known for its natural beauty, the wider region around Ermua also features some cultural points of interest. You might find attractions such as the Monastery of Santa María de Zenarruza or the Hermitage of San Miguel de Arretxinaga, which could be visited as part of a longer trip to the area.

How long do mountain bike trails in Ermua typically take to complete?

Trail durations vary significantly based on difficulty and distance. Easy routes like the Centro BTT Debabarrena Ruta 2 – vuelta de embalse Ariola can be completed in under 30 minutes. Moderate trails, such as the Ariola Lake Trail – Areitio Climb loop from Ermua, often take around 2 hours. More difficult and longer routes can take 3-4 hours or more, depending on your pace and fitness level.

Most popular routes around Ermua

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