Why the Gerês-Xurés Cross-Border Biosphere is Europe’s best kept cycling secret

A hidden gem for cyclists

There are few places in Europe where you can cycle through mountain valleys in the morning, follow a 2,000 year old Roman road in the afternoon, and end the day soaking in natural thermal springs. In the Gerês-Xurés Cross-Border Biosphere Reserve, a UNESCO-protected landscape that straddles northwestern Portugal and Galicia in Spain, you can do exactly that.

Far from the crowds of the Alps or Pyrenees, this is a place where traditional stone villages, medieval castles, and even the ruins of old wolf traps sit amongst granite mountains and pristine rivers. Pedalling across an international border on two wheels, experiencing two countries in one destination, only adds to the experience.

Whether you’re a weekend roadie, a gravel explorer, or an e-bike enthusiast, cycling here lets you immerse yourself in stunning scenery, rural traditions, and wild nature.

 

Where is the Gerês-Xurés Cross-Border Biosphere?

Tucked away in the northwest corner of the Iberian Peninsula, the Gerês-Xurés Cross-Border Biosphere stretches across northern Portugal and Galicia in Spain. Covering almost 268,000 hectares, it’s a protected region of rugged mountains, ancient forests, and traditional rural life.

The reserve combines Portugal’s Peneda-Gerês National Park with Spain’s Baixa Limia-Serra do Xurés Natural Park, making biking here unlike anywhere else. Cyclists exploring northern Spain and Portugal will discover landscapes and traditions that have always naturally crossed borders.

Despite feeling wonderfully remote once you’re here, the area is surprisingly easy to reach. Porto is the nearest international airport on the Portuguese side, while Santiago de Compostela works well if you’re flying into Spain.

 

Why the Gerês-Xurés is a cycling holiday paradise?

Cyclists are drawn to Gerês-Xurés for its wild landscapes, quiet roads, and rich history. It’s one of the best kept secrets in Europe for a cycling holiday, just waiting to be discovered:

Incredible scenery

Granite mountains, hidden valleys, and waterfalls give a picture-postcard backdrop. In spring, the hillsides burst into colour with yellow gorse and pink heather.

Varied cycling terrain

The smooth, almost traffic-free roads through traditional villages and gravel tracks like the Geira Roman road make cycling here a dream. Routes are a mix of gentle undulation with forest climbs and sweeping descents – all with incredible scenery.

Rural history and culture

From ancient wolf traps to medieval castles and remote shepherd hamlets, the landscape itself tells stories of the region’s rural history.

Thermal springs

The natural hot springs at Lobios on the Spanish side have soothed travellers since Roman times. It’s perfect after a day on the bike.

Fantastic climate

Spring and autumn bring ideal cycling weather with warm days and crisp mornings. Summer is warmer, but winter can be cold with higher elevations occasionally seeing snow.

 

If you’re planning to go cycling in northern Spain or Portugal, the Gerês-Xurés area offers a unique combination of beauty, quiet roads, and history – all with a lack of crowds.

 

Cycling highlights you’ll only find here

Every ride in the Gerês-Xurés uncovers something special. A few highlights include:

• Portela do Homem Pass – this high border crossing has breathtaking views on the descent into Lobios.
• Traditional Galician villages – tiny villages like Esperanzo, Puxedo, A Cela, and Prado, give a glimpse of Galician rural life, unchanged for generations.
• The Valley of Death – the Salas Valley, also called the Valley of Death, has over 100 catalogued megalithic burial sites.
• Inverneiras and Brandas – ancient seasonal settlements below Castro Laboreiro giving a fascinating insight into the traditional transhumance.
• Medieval hilltop castle – Castro Laboreiro’s 13th century castle sits on a rocky hill at 1,015m, giving panoramic views across the surrounding mountains and village below.

 
You’ll ride on quiet tarmac roads, winding through the Peneda-Gerês National Park and Baixa Limia-Serra do Xurés Natural Park.

 

Why a cycling holiday in the Gerês-Xurés Cross-Border Biosphere Reserve is more than just riding a bike

Cycling here is as much about the culture and history as the climbs and descents. It’s a journey across borders and through time.

The Geira Roman road (Via Nova Roman Road XVIII), built 2,000 years ago to link Braga in Portugal with Astorga in Spain, still carries traffic today. Don’t be surprised when you come across vehicles trying to squeeze past each other! The route also has the largest collection of Roman milestone markers on the Iberian Peninsula.

History is everywhere. You’ll see ancient wolf traps – stone structures designed to protect livestock from predators – medieval castles, and villages where traditions run deep. In Castro Laboreiro, you may read about the ‘living widows’, women who dressed in black while managing homes and land while their husbands worked away.

Local hospitality is part of the experience too. Family-run cafes and restaurants offer a warm welcome, where the food and wine reflect centuries of tradition. Cycling here connects you with a living landscape where nature, history, and people come together.

 

The best time to visit

The Gerês-Xurés Cross-Border Biosphere changes with the seasons, each offering a different way to experience the region.

• Spring
  Rivers and waterfalls are full, and the hillsides are carpeted with wildflowers, yellow gorse, and pink heather. Early mornings can be cool but temperatures warm through the day.

 

• Summer
  The longer days and warmer weather are ideal for detours to natural pools for a swim. Early mornings and evenings are the best times to cycle to avoid the heat.

 

• Autumn
  The forests turn golden, and the temperatures are milder than summer. It’s also the harvest season, making it perfect for sampling local wines and seasonal produce.

 

• Winter
  Cycling in winter is less common. Higher elevations can be cold, and snow or frost may appear, especially on mountain passes.

 

Planning your trip

A self-guided holiday is the best way to explore at your own pace. You can take in the scenery, stop at villages, and linger at waterfalls without feeling rushed.

If you’re looking for self-guided cycling holidays in Spain and Portugal, this route is ideal. At Portugal Green Walks, we handle every detail so you can relax and enjoy the riding. We provide mapped GPS routes, and clear notes on distances and elevations.

 

What’s included on our self-guided cycling holiday in the Gerês-Xurés Cross-Border Biosphere Reserve

 

• 5 nights’ hand-picked accommodation, with breakfast
• Transfer with your bike from Ponte de Lima to Sto António de Mixoẽs
• Daily luggage transfers
• GPS navigation app and detailed route notes
• In-person welcome briefing and bike handover
• E-bike rental
• 24-hour emergency contact (English speaking)
• Insider tips for cafes, viewpoints, and cultural detours

 
With the logistics taken care of, you’re free to enjoy the ride, cycling through the stunning scenery of two countries where you’ll cross the border multiple times.

 

Why book this trip now

One of the greatest joys of cycling here is how untouched the Gerês-Xurés feels. Unlike busy mountains elsewhere, you’ll often find yourself riding on quiet roads with only birdsong for company. It’s a peaceful, authentic, and uncrowded corner of Europe.

By joining our self-guided trip, you’ll be supporting local, sustainable tourism in a UNESCO-protected area. Family-run hotels, village cafes, and traditional restaurants all benefit directly from cyclists visiting the region in a low-impact way. Many of the best experiences are tucked away off the main routes, hidden gems discovered thanks to the local knowledge we build into every trip.

This is one of the most rewarding cycling holidays in Spain and Portugal, and now is the perfect time to visit. The Gerês-Xurés still feels authentic and unspoiled, undiscovered by the crowds.

 

FAQs

Where exactly is the Gerês-Xurés Cross-Border Biosphere Reserve?

This UNESCO-protected region straddles northern Portugal and Galicia in Spain, combining Portugal’s Peneda-Gerês National Park and Spain’s Baixa Limia-Serra do Xurés Natural Park.

What’s the best airport to get there?

Porto (Portugal) and Santiago de Compostela (Spain) are the closest international airports.

Do I need to be a serious cyclist to enjoy the trip?

No – e-bikes are included as standard and you set your own pace, stopping for a rest or to admire the views whenever you want.

What’s the weather like?

Spring and autumn are ideal, with warm days and cool mornings. Summer is hotter, while winter can be cold with occasional snow at higher elevations.

Is the area safe for solo riders?

Yes. The roads are quiet, the local communities are welcoming, and we provide a GPS route for you to follow. Our support team is just a phone call away too.

Do I need travel insurance?

Yes – we recommend taking out a policy that covers cycling and independent travel.

 

Ready to ride?

Cycling in the Gerês-Xurés Cross-Border Biosphere Reserve is about the moments you remember, not just the kilometres you’ll cover. Cross a mountain pass into another country, stop for coffee in a rural village, or relax in thermal waters after a day in the saddle.

This is a cycling holiday at its most rewarding.

With our self-guided holiday, the planning is taken care of. All you need to do is turn the pedals and enjoy the journey.

Cyclists on the lookout for the best cycling holidays in Europe will love this region. There are few places where mountains, nature, culture, and cycling come together so perfectly.

 

Book your Gerês-Xurés cycling adventure through Portugal and Spain, and discover this hidden corner of Europe

 
Get in touch to ask a question or check availability

 

Like what you see but it’s not quite a perfect fit?

Let us know what you’re looking for. We’re happy to tailor the trip and create your ideal holiday.

 

Looking for more cycling holiday inspiration?

Explore our full range of self-guided biking and cycling holidays in Portugal and Spain, including other routes through northern Portugal and Galicia.