4.5
(74)
1,633
riders
49
rides
No traffic touring cycling routes around Arratzu are situated within the Urdaibai Biosphere Reserve, a UNESCO-recognized area in Bizkaia, Spain. The region is characterized by a blend of coastal and inland landscapes, featuring lush meadows, dense oak groves, and the winding Golako River. Cyclists can navigate diverse terrain, from the dynamic Urdaibai Marsh to challenging mountain passes like Muniketa and Nabarniz, offering varied elevation profiles. This environment provides a rich backdrop for touring cycling, combining natural beauty with historical landmarks.
…Last updated: May 5, 2026
9
riders
31.3km
02:11
590m
590m
Hard bike ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
38
riders
78.5km
05:41
1,650m
1,650m
Hard bike ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.

Sign up for free
4.5
(4)
34
riders
45.1km
02:59
620m
620m
Hard bike ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
5.0
(1)
35
riders
45.6km
03:53
1,310m
1,310m
Hard bike ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
4.5
(2)
18
riders
47.9km
03:29
1,070m
1,070m
Hard bike ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
Get access to more routes and recommendations from other explorers.
Sign up for free
Already have an account?
Our route recommendations are based on thousands of hikes, rides, and runs completed by other people on komoot.
Start today with a free account
Your next adventure awaits.
Login or Signup
Popular around Arratzu
Recreation of Picasso's famous painting. The original can be seen in Madrid.
1
0
A beautiful vantage point. If the season is right, there's also the opportunity to watch whales. The path further to Gaztelugatxe, however, requires pushing because it's very overgrown. We didn't go far, but turned around and drove back along the road.
0
0
From the lighthouse you have a 270° view on the coast, very clear on st juan de Gaztelugatxe, perfect spot for some scenic pictures!
4
0
When the Condor attacked, the residents of Guernica tried to protect the tree with their bodies because it is sacred to the Basques. Even today, elected politicians have to swear their loyalty to the Basque Country at an oak tree that stands a few meters away.
0
0
Lonely coastal road for cycling with a beautiful beach and bars for a break.
0
0
Urdaibai is an extraordinarily beautiful and varied natural space, which is why it was declared a Biosphere Reserve by UNESCO in 1984. Its heart is the Oka River that rises on Mount Oiz and transforms into an estuary upon reaching Mundaka, creating spectacular marshes full of life. We recommend you see them at different times of the day to be able to appreciate both low and high tide. But in addition to unique marshes, Urdaibai offers you some of the most beautiful and appreciated beaches in Euskadi, Laida, which constantly varies in shape and size or the spectacular Laga beach, located under the imposing Peñón de Ogoño, which many define as “the closest thing to paradise.”
2
0
There are always great views from the street
0
0
A low point on the tour. It was a Sunday and all the restaurants were packed. When I politely expressed my wish to be able to charge the battery in Spanish, we were literally thrown out. Spaniards drive long distances to eat out on Sundays. It has never happened to us that the battery was not allowed to be charged. Of course we would have eaten and drank. The whole place was almost entirely made up of holiday apartments, with the blinds down and totally dead without the lunch guests. No hotel, no guesthouse, but with a train station. Cheers to the Euskotren regional train in the Basque Country, on time, super helpful staff. So take the train back to Gernica!!!
0
1
There are nearly 50 dedicated no traffic touring cycling routes around Arratzu, offering a wide range of options for exploring the Urdaibai Biosphere Reserve. These routes vary in difficulty, from easy rides suitable for beginners to challenging ascents for experienced cyclists.
The Urdaibai Biosphere Reserve, where Arratzu is located, offers beautiful scenery year-round. Spring brings vibrant greens and mild temperatures, while autumn showcases golden hues. The region's diverse landscapes, from coastal paths to dense forests, are enjoyable in most seasons, though summer can be warmer and winter might require more preparation for cooler, potentially wetter conditions.
The no traffic touring cycling routes around Arratzu are highly rated by the komoot community, with an average score of 4.5 stars from 74 reviews. Cyclists frequently praise the pure natural beauty of the Urdaibai Biosphere Reserve, the quiet roads, and the diverse landscapes that offer both coastal views and challenging mountain passes.
Yes, there are a few easy no traffic touring cycling routes around Arratzu, perfect for beginners or those seeking a relaxed ride. These often follow flatter terrain, such as paths along the Oka river towards the Mundaka estuary, providing splendid views of the marshes and their birdlife. The Urdaibai Bike Reserve includes options suitable for families and beginners.
The terrain around Arratzu is incredibly diverse. You can expect a mix of lush meadows, traditional farmsteads, dense forests, and paths along the winding Golako River. Routes exploring the Urdaibai Marsh offer dynamic views of water and sand, while more challenging options include significant elevation gains over mountain passes like Muniketa and Nabarniz, providing rewarding views of the Biosphere Reserve.
Absolutely. For experienced cyclists, Arratzu and the wider Urdaibai region offer numerous challenging no traffic routes. These often involve significant elevation gains and tackle mountain passes such as Muniketa, Nabarniz, Paresi, Jainko, and Errigoiti. One such route is the Montecalvo Loop from Gernika, which features nearly 600 meters of elevation gain over 31 km.
Cycling around Arratzu offers stunning natural features. You can explore the Urdaibai Biosphere Reserve, with its lush meadows and dense forests, including the Artzubi Oak Grove. Many routes provide incredible views over the Urdaibai marsh, a dynamic landscape shaped by the tides. You might also encounter the ancient Old Tree of Gernika.
Yes, Arratzu is rich in history. Cyclists can visit the 16th-century Artzubi Bridge, once part of the Camino de Santiago. Other notable sites include the ancient Monastery of Santa María de Zenarruza, an important enclave of the Way of St. James, and the unique Oma Forest, an art installation where trees serve as canvases. The Guernica Mural in Gernika is also accessible from some routes.
Many no traffic touring cycling routes in the Arratzu area offer exceptional viewpoints. The region's mountain passes provide panoramic vistas of the Urdaibai Biosphere Reserve, and routes exploring the coast often feature views of the Mundaka estuary or even San Juan de Gaztelugatxe. Keep an eye out for designated viewpoints, such as those offering views over the Urdaibai marsh.
Yes, many of the no traffic touring cycling routes around Arratzu are circular, allowing you to start and end at the same point. For example, the challenging Laga Beach – Lekeitio loop from Gernika offers a substantial ride of over 78 km with significant elevation, while the Matxitxako Lighthouse – Guernica Mural in Gernika loop provides a scenic 45 km option.
Yes, there are family-friendly no traffic touring cycling routes available, particularly those described as easy. These routes often follow the course of the Oka river, providing flat and fresh paths with splendid views of the marshes. The Urdaibai Bike Reserve specifically mentions easy options suitable for families and beginners, ensuring a safe and enjoyable experience away from traffic.
While this guide focuses on individual routes, the extensive network of no traffic paths and quiet roads within the Urdaibai Biosphere Reserve makes it possible to link several routes for longer, multi-day touring. You can combine routes that explore the upper estuary, coastal villages, and mountain passes to create a comprehensive journey through the region's diverse landscapes.


Browse the best Cycling routes in other regions.