4.8
(107)
10,487
riders
9
rides
Road cycling around Ermua offers diverse terrain in the eastern part of Bizkaia, bordering Gipuzkoa. The region is characterized by rugged mountainous landscapes, with the Urko and Ureta mountains providing challenging climbs and descents. Deep valleys and steep foothills create a visually striking environment for cyclists. The area also features the picturesque Aixola Reservoir, surrounded by forested areas, which is incorporated into several routes.
Last updated: July 2, 2026
239
riders
71.2km
03:34
1,070m
1,070m
Hard road ride. Very good fitness required. Mostly well-paved surfaces and easy to ride.
50
riders
30.4km
03:59
720m
720m
Moderate road ride. Good fitness required. Some segments of this route may be unpaved and difficult to ride.

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48
riders
41.8km
02:11
600m
600m
Moderate road ride. Good fitness required. Mostly well-paved surfaces and easy to ride.
24
riders
16.5km
00:43
110m
110m
Moderate road ride. Great for any fitness level. Some segments of this route may be unpaved and difficult to ride.
19
riders
28.7km
01:34
580m
580m
Moderate road ride. Good fitness required. Mostly well-paved surfaces and easy to ride.
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The small road around the tunnel offers a wonderful view
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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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Good cycle path next to the river and main road, so the better choice
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Long and fast road along the ocean, perfect tarmac and very smooth to ride
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That is NOT A FOREST! It is a single plantation of eucalyptus. In reality it is a disaster painted green, green as hell.
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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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Located between green hills, the municipality of Garay is part of the Duranguesado region, in Vizcaya. It is located on the slopes of the Oiz massif.
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There isn't much to say about this small town except that it is in a beautiful area with great views. It has an interesting little church, San Isidro Eliza, and a public water fountain. If it's on your route it's worth a stop.
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Komoot features a selection of road cycling routes around Ermua designed to minimize traffic. While the guide highlights specific routes, the region offers numerous options for quiet rides. You can explore routes like the challenging Mount Oiz Circular Trail, which offers a significant climb away from busy roads.
Ermua is nestled amidst the Urko and Ureta mountains, so expect a diverse and often challenging terrain. Routes will feature significant climbs and descents through profound valleys and steep foothills, providing dramatic scenic views. While primarily paved for road bikes, the mountainous landscape ensures an engaging ride with varying elevations.
Yes, many of the road cycling routes around Ermua are designed as circular loops, allowing you to start and finish in the same location. An example is the Mount Oiz Circular Trail, which offers a substantial loop through the region's impressive landscapes.
While Ermua's mountainous terrain generally presents moderate to difficult challenges, some routes offer a more manageable experience. For instance, the Lasiar Recreation Area – Garai loop from Traña is rated as moderate, providing a good option for those seeking a less strenuous ride while still enjoying the quiet roads.
The routes often pass through stunning natural landscapes and near historical points. You might encounter mountain passes like Alto de Karabieta or Alto de Ixua, offering panoramic views. The region also features cultural landmarks such as the Monastery of Santa María de Zenarruza, providing a rich experience beyond just cycling.
Ermua has good transport links to larger cities like Bilbao and San Sebastian. While direct public transport to specific trailheads might vary, you can typically reach Ermua by bus or train and then cycle to the starting points of the routes. It's advisable to check local public transport schedules and bike carriage policies in advance.
Parking is generally available in and around Ermua town center. For routes starting slightly outside the town, such as those near the Aixola Reservoir, there are often designated parking areas. Always look for official parking facilities to ensure safety and compliance with local regulations.
The Basque Country generally offers pleasant cycling conditions from spring through autumn. Spring (April-May) brings lush greenery and moderate temperatures, while autumn (September-October) provides cooler weather and beautiful foliage. Summer can be warm but is also popular. Winters are milder but can be wet, so check the forecast for optimal conditions.
While many routes in Ermua feature significant elevation, some quieter, less trafficked roads or sections might be suitable for families with older children who are comfortable with road cycling. For younger families, it's best to look for routes with minimal elevation gain and very wide, separated paths, which might be found in specific greenways (vías verdes) in the wider Basque Country region.
Road cycling routes, especially those with climbs and descents, are generally not ideal for cycling with dogs, even on no-traffic roads, due to safety concerns for both the dog and the cyclist. If you wish to bring your dog, consider exploring hiking trails or specific multi-use paths where dogs are permitted and the terrain is safer for them.
Ermua itself offers various cafes, pubs, and accommodation options. Many routes pass through or near small villages where you can find local establishments for refreshments. For longer rides, it's always a good idea to carry sufficient water and snacks, especially when venturing into more remote mountainous areas.
The road cycling experience around Ermua is highly rated by the komoot community, with an average score of 4.7 out of 5 stars. Reviewers often praise the challenging climbs, the stunning natural scenery, and the opportunity to ride on quiet, well-maintained roads away from heavy traffic.
The Aixola Reservoir is a picturesque feature in the region, and loops around it are known for their scenic beauty. While some routes might incorporate sections near the reservoir, specific 'no traffic' routes directly around it can be found. These often involve challenging rides with significant elevation gains, offering a serene environment away from main roads.


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