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Routes
Mountain Hikes
Basque Country
Gipuzkoa
Bajo Bidasoa

Irun

The best mountain hikes around Irun

5.0

(4)

13

hikers

5

hikes

Mountaineering around Irun offers diverse and rugged natural landscapes within the Basque Country of northern Spain. The region is characterized by the Basque Mountains, which include significant ranges like Peñas de Aya, a granite massif featuring prominent peaks such as Irumugarrieta, Txurrumurru, and Erroilbide. Coastal mountains like Mount Jaizkibel provide routes with steep seaward-facing slopes and cliffs, while La Rhune offers panoramic views from its summit. This area features deep valleys, numerous ravines, and extensive trail networks.

Best mountaineering routes around Irun

  • The most popular mountaineering route is Txurrumurru Summit Sculpture loop from Endara, a 5.7 miles (9.2 km) trail that takes 4 hours 0 minutes to complete, leading to one of the prominent peaks of Peñas de Aya.
  • Another top favourite among local mountaineers is Larhun – Sugizeaga loop from Manttu Baïta, a moderate 6.5 miles (10.5 km) path traversing the slopes of La Rhune with expansive views.
  • Local mountaineers also love the Aritxulegi loop from Lasaingana, a 6.8 miles (10.9 km) trail leading through varied terrain, often completed in about 4 hours 19 minutes.
  • Mountaineering around Irun is defined by granite massifs, coastal mountains, and lush forests, offering routes that range from challenging ascents to moderate paths. The network provides options for different ability levels, from experienced mountaineers to those seeking a demanding day out.
  • The routes in Irun are highly rated by the komoot community with an average score of 5.0 stars from over 10 reviews. More than 40 mountaineers have used komoot to explore Irun's varied terrain.

Last updated: May 4, 2026

5

hikers

#1.

Endara Valley Hiking Trail – Japanese Larch Forest loop from Lasaingana

11.0km

04:25

530m

530m

Moderate mountaineering route. Good fitness required. Mostly accessible paths. Sure-footedness required.

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Moderate

2

hikers

Moderate mountaineering route. Good fitness required. Mostly accessible paths. Sure-footedness required.

Moderate
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Hard mountaineering route. Very good fitness required. Sure-footedness, sturdy shoes and alpine experience required.

Hard

Moderate mountaineering route. Good fitness required. Mostly accessible paths. Sure-footedness required.

Moderate

Hard mountaineering route. Good fitness required. Sure-footedness, sturdy shoes and alpine experience required.

Hard

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Tips from the Community

Malte
October 18, 2025, Irumugarrieta Peak (811 m)

Caution! Approaching Irumugarrieta Peak from the south, you have to climb a serious, vertical wall. Unfortunately, with a dog, we had to give up here and fought our way down cross-country through the undergrowth. The other way around, it probably won't work with a dog even without abseiling. The tour is still very beautiful, but I wouldn't do the special descent again.

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Near the end of the stream section, the concrete blocks covering the stream are as of September 2025 completely missing, leaving you two options forward: 1) walk on a 20cm wide path right next to a big cliff, 2) walk inside of the stream bed, knee-deep in water. We decided to turn back because it did not seem safe for us. Caution recommended!

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Black Belt

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IZARRO
May 25, 2025, Col Lizuniaga

From this pass, several mountain bike options are available.

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Enbicia2
May 14, 2025, Col Lizuniaga

From this hill we see the summit of Pic d'Ibantelly to our left, the French town of Sare at our feet, and Peña Plata to our right.

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nice pass there are 2 climbs not long but between 12/14% approximately

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The bivouac room is open. Rainproof seating is provided in front. (April 2025)

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From the path, you can enjoy beautiful views of the summit of the Rhune

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Frequently Asked Questions

How many mountaineering routes are available around Irun?

There are several mountaineering routes around Irun, with komoot featuring 7 distinct tours. These routes offer a variety of experiences, from moderate ascents to more challenging expeditions into the region's rugged terrain.

What are the typical difficulty levels for mountaineering in this area?

Mountaineering routes around Irun cater to a range of abilities. You'll find 4 moderate routes, perfect for those seeking a demanding day out, and 3 difficult routes for experienced mountaineers looking for a significant challenge. The terrain often involves granite massifs and coastal mountains, requiring good fitness and sturdy shoes.

Are there any circular mountaineering routes around Irun?

Yes, many routes are designed as loops, allowing you to start and finish at the same point. For example, the Aritxulegi loop from Lasaingana is a popular moderate trail, and the Pilotalekugaña – Larhun loop from Alkegiberea offers a more difficult circular option with extensive views.

What kind of scenic views can I expect on these mountaineering routes?

The region offers breathtaking panoramas. From the peaks of Peñas de Aya, you can enjoy views extending from Txingudi Bay to Mount Jaizkibel and the Oiartzun Valley. Mount Jaizkibel itself provides magnificent vistas over the Bay of Hendaye, the Atlantic coast, and towards San Sebastián. La Rhune also offers stunning panoramic views across the border region.

Are there any notable natural features or waterfalls along the trails?

Yes, the area is rich in natural beauty. The Peñas de Aya Natural Park features an irregular relief with deep valleys and numerous ravines. You can find the impressive Aiztondo Waterfall, the largest in the Basque Country, within this park. The coastal routes, particularly around Mount Jaizkibel, showcase steep seaward-facing slopes and cliffs.

What are some interesting landmarks or attractions to see near the mountaineering routes?

Beyond the natural landscapes, you can explore several points of interest. In Peñas de Aya, the ancient Arditurri mines offer a glimpse into the region's history. Along Mount Jaizkibel, you might encounter historic defensive forts and towers from the Carlist Wars. The La Rhune summit itself is a significant landmark, accessible by foot or train, offering expansive views.

What is the best time of year for mountaineering around Irun?

The Basque Mountains offer diverse conditions. While specific seasonal trail conditions can vary, the region generally provides a rich environment for outdoor enthusiasts. Spring and autumn often present pleasant temperatures and vibrant landscapes, ideal for exploring. Always check local weather forecasts before heading out.

Are there options for advanced mountaineers seeking a challenge?

Absolutely. The region is known for its challenging terrain, especially within the granite massif of Peñas de Aya. Routes like Txurrumurru Summit Sculpture loop from Endara are classified as difficult, involving significant elevation gain and rugged paths that require good fitness and experience. Some sections can resemble climbing.

What do other mountaineers say about the routes in Irun?

The mountaineering routes around Irun are highly regarded by the komoot community, with an average rating of 5.0 stars from over 10 reviews. Mountaineers often praise the diverse terrain, the challenging ascents, and the rewarding panoramic views from the summits, highlighting the unique blend of coastal and mountain scenery.

Can I reach the mountaineering trailheads using public transport?

While Irun itself is well-connected, access to specific mountaineering trailheads in the natural parks might require some planning. It's advisable to research local bus services or regional transport options that connect to villages or starting points near the major mountain ranges like Peñas de Aya or Mount Jaizkibel. Some areas, like La Rhune, even offer train access to the summit.

Are there parking facilities available near the trailheads?

For many popular mountaineering areas around Irun, you will typically find designated parking areas, especially near natural park entrances or popular starting points for trails. However, during peak seasons, these can fill up quickly. It's always a good idea to arrive early or check for specific parking information for your chosen route's trailhead.

Are there any routes that combine coastal and mountain scenery?

Yes, Mount Jaizkibel is an excellent example of a mountain that runs parallel to the coastline, offering routes with magnificent panoramas over the Atlantic and the Bay of Hendaye. Its steep seaward-facing slopes provide a unique mountaineering experience where lush green mountains meet the blue sea, creating unexpected and picturesque landscapes.

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