Basque Interior Way

The Basque Interior Way or Via of Bayonne connects Irun with Santo Domingo de la Calzada or Burgos. A historic route through the heart of the Basque Country and La Rioja to the French Way.

Organize your Basque Interior Way

Origin

Irún

Destination

Burgos

Distance

257.2 km

Days

12

Difficulty

Media

General Description of Basque Interior Way

The Vasco-Interior Route is an important historical itinerary that connects the border in Irun with the French Way. With a 200 km journey to Santo Domingo de la Calzada, it passes through the heart of Euskadi, going through Tolosa, the San Adrián tunnel and Vitoria-Gasteiz, before entering the vineyards of La Rioja.

It was a very traveled route in the Middle Ages, especially to avoid the coast. Today, it is an excellent option for those who seek an alternative to the Northern Way in its initial section and wish to explore the interior of Basque-Riojan.

Connections of Basque Interior Way

The French Way
Distance: 779 km
Days: 33
Difficulty: Media

The Camino Francés is the pilgrimage route to Santiago de Compostela of excellence, chosen by thousands of pilgrims every year. With a journey of approximately 780 km from Saint-Jean-Pied-de-Port or less from Roncesvalles, it traverses northern Spain. This path, declared a World Heritage Site by UNESCO, offers exceptional infrastructure for services and hostels.

Pilgrims traverse Navarra, La Rioja, Castile and León, and finally Galicia, marveling at monumental cities such as Pamplona, Burgos, and León, and charming villages. The diversity of its landscapes is one of its greatest attractions, from the Pyrenees and the Castilian plains to the green forests of Galicia. It's a physical and spiritual journey that leaves an indelible mark, ideal for both experienced pilgrims and those starting out on the Camino de Santiago.

Stages of this variant:

Etapa 1
Stage 1: St. Jean Pied de Port to Roncesvalles
24.50 km 9.00h Alta
Etapa 2
Stage 2: Roncesvalles to Zubiri
21.40 km 6.00h Media
Etapa 3
Stage 3: Zubiri is going to Pamplona.
20.40 km 5.00h Media
Etapa 4
Stage 4: Pamplona to Pontevedra
23.90 km 5.75h Media
Etapa 5
Stage 5: Bridge of Queen to Estella
22.00 km 6.00h Media
(28) more
Basque Way by Bike
Distance: 203.4 km
Days: 4
Difficulty: High

The Vasco-Interior Cycle Route is an intense and culturally rich route that traverses Guipúzcoa and Álava. In 4 stages, cyclists overcome landmarks such as the San Adrián tunnel, a historic pass through Aizkorri mountain range. The route is full of contrasts, from green Guipuzcoan valleys to the Alavesan plain. It's an demanding route, recommended for experienced mountain bikers who are rewarded with exceptional monumental heritage.

Stages of this variant:

Etapa 1
Stage 1: Ride to Tolosa by bike
36.50 km 12.17h Media
Etapa 2
Stage 2: Toledo to Salamanca/Agallas by bike
53.00 km 17.67h Alta
Etapa 3
Stage 3: Sallentilla/Aguilar de la Herencia to La Pobla de Arganzón by bike
16.50 km 5.50h Media
Etapa 4
Stage 4: The Puebla de Arganzón to Santo Domingo de la Calzada by bike
58.00 km 19.33h Alta

Stages of Basque Interior Way

Etapa 1: Irún to Hernani

24.40 km 6.00h Media 30m

Description:

The first stage of the Vasco-Interior Way is an demanding day that ventures into Guipuzcoan mountains. The route leaves the coast to ascend over a broken terrain with steep slopes. The route passes th...

Origen: Irún

Destino: Hernani

Etapa 2: Hernani to Tolosa

19.50 km 5.00h Media 40m

Description:

This stage continues through the heart of Gipuzkoa, in a medium mountain terrain. The profile is a continuous "rocky slope", with constant ups and downs through a landscape of valleys and hills. The r...

Origen: Hernani

Destino: Tolosa

Etapa 3: Tolosa to Beasain

18.60 km 4.50h Baja 270m

Description:

This stage enters the heart of rural Guipuzcoa, the Goierri region's comarca. The profile is demanding, a continuous rise and fall through a mountain landscape of great beauty. The route passes throug...

Origen: Tolosa

Destino: Beasain

Etapa 4: Beasain to Zegama

16.60 km 5.00h Alta 250m

Description:

This is the queen stage of the Vasco-Interior Camino, an impressive mountain traverse that crosses the Aizkorri Mountains. The path ascends along an ancient Roman road to the San Adrián Tunnel, a natu...

Origen: Beasain

Destino: Zegama

Etapa 5: Zegama to Salvatierra / Agurain

22.80 km 6.00h Alta 75m

Description:

After the ruggedness of the mountain, this stage is an enjoyable stroll through the Llanada Alavesa. The profile is completely flat and runs through a landscape of fields of cultivation. It's a comfor...

Origen: Zegama

Destino: Salvatierra / Agurain

Etapa 6: Salvatierra / Agurain to Vitoria-Gasteiz

27.90 km 7.00h Media 25m

Description:

This stage takes the pilgrim out of the Alavesa capital to immerse him in a landscape of hills and forests. The profile is undulating, with an initial ascent to leave the plain. The route crosses the ...

Featured Towns of Basque Interior Way

Explore the key towns and cities of this route.

Millenary History of the Camino de Santiago: Origins and Evolution Basque Interior Way

Discover the origins and evolution of Basque Interior Way

The Vasco-Interior Way, also known historically as the Via of Bayonne, was one of the most important and strategic entry points to the Iberian Peninsula for European pilgrims in the High Middle Ages. Its history is that of a route forged by the need for security and geographical logic, a mountainous corridor guiding thousands of walkers through the heart of Euskadi during an era when other routes were more perilous or uncertain. It was, along with Roncesvalles, the great Pyrenean step towards Santiago.

Between the 10th and 13th centuries, in the midst of the fervor of pilgrimages and with much of the peninsula under Muslim control, security was the top priority. The Vasco-Interior offered an itinerary that passed through territories firmly controlled by Christian kingdoms of Pamplona and Castile. Starting from the border in Irún, it ventured into Guipúzcoa, avoiding the coast —still exposed to possible Norman attacks— and seeking protection in the interior valleys and mountains.

The most iconic and defining element of this route is the Tunnel of San Adrián. This is not an artificial tunnel but a natural cave that pierces the limestone crest of the Aizkorri mountain range. Used as a passage since prehistory, during the Middle Ages it was adapted with a stone-paved road and housed an hermitage dedicated to Saint Adrian, offering physical and spiritual refuge. For the medieval pilgrim coming from the plains of France, crossing this dark and damp cave to emerge on the southern slope of the mountain range in the Álava plains must have been an overwhelming experience, a rite of passage, a baptism in the Spanish land. Kings such as Sancho III the Greater of Navarre and Alfonso VIII of Castile understood its strategic value and protected it, turning it into a fundamental route not only for pilgrims but also for trade and troop movement.

Once past the tunnel of San Adrián, the path descended to the Alavesa Llanada, a wide and fertile plain. The city of Vitoria-Gasteiz, founded in 1181 by King Sancho VI of Navarre on an ancient village, became a fundamental milestone, a place of rest and replenishment before continuing the journey. The route continued south, crossing the Vitorian Mountains and crossing the Ebro River at strategic points such as Miranda de Ebro or Haro's Conchas, to enter Castilian or Riojan territories.

The final goal was to connect with the great artery of the Camino Francés. Depending on the variant, the connection occurred in Burgos, one of the capitals of the Camino, or in Santo Domingo de la Calzada, in La Rioja. From the 13th century onwards, the route of Roncesvalles, somewhat less demanding and with greater institutional support, was gaining ground and channeling most of the pilgrim flow. The Vasco-Interior Way saw a decrease in international traffic but never abandoned it, maintaining its regional importance.

The modern revival of this itinerary has rescued one of the most fascinating pages of Jacobean history. Today, it offers the pilgrim an extremely demanding route, with extraordinary landscape beauty and monumental heritage of first order. Walking on the Vasco-Interior Way is following in the footsteps of the first European pilgrims and understanding how faith and strategy came together to draw a secure path through the mountains.

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