Date, registration & deadlines
Apr 25, 2026 · Check official website
Local guides
Race data
| Modality | Distance | Elevation Gain | ITRA | Max Time | Price |
|---|---|---|---|---|---|
| NX35 | 35 km | D+ 1800m | - | 7h | 45 EUR |
What you need
How long will it take you?
Estimate your race time based on distance, elevation and your runner level.
Historical weather
Typical weather for the race date (10-year average)
Temperature
8°C – 16°C
Average 12°C
Rain
53%
3.7 mm avg
Wind
18 km/h
max. average
Sunshine hours
10h
daily average
Gear recommendations
Bring a waterproof jacket (53% chance of rain)
Gore Wear
Gore Wear R7 GTX Shakedry
Chubasquero Gore-Tex Shakedry ultraligero (110 g). Impermeabilidad total sin membrana interior, altamente transpirable. El referente para corredores de montaña.
Salomon
Salomon Bonatti WP
Chaqueta cortavientos impermeable ultraligera (135 g). Costuras selladas, capucha ajustable y ventilación trasera. Se pliega en su propio bolsillo.
Bring thermal layers (low of 8°C)
Buff
Buff Thermonet
Buff tubular térmico con tecnología Primaloft. Retiene el calor corporal, ultraligero y polivalente: gorro, braga, cinta. Ideal para alta montaña.
Odlo
Odlo Active Warm Eco
Camiseta térmica de manga larga con tejido reciclado y tratamiento antiolor. Regulación térmica activa, ideal como capa base en montaña.
Salomon
Salomon Cross Run Tight
Mallas largas de trail con tejido elástico y transpirable. Cintura ajustable, bolsillo trasero con cremallera. Protección contra el frío y la vegetación.
Salomon
Salomon Cross Warm Glove
Guantes térmicos de running con palma antideslizante y puntas táctiles. Ligeros, cálidos y compatibles con bastones.
Forecast for April 25
Real-time data from Open-Meteo
GR 322 Nafarroa Xtrem
GR 322 Nafarroa Xtrem is a mountain race that follows the trails of the GR 322 long-distance path in the western Pyrenees of Navarra. Starting and finishing in Zubiri, in the Esteribar Valley, the race completes a full loop around Monte Adi over a demanding 35-kilometre course with 1,800 metres of elevation gain.
Organised since 2016, the Nafarroa Xtrem has established itself as one of the key races on the Navarran calendar, attracting over 1,000 runners each year from across Spain, France, Italy, and Portugal.
The course
The NX35 starts from the Zubiri sports complex and circles Monte Adi along GR 322 trails. Runners will pass through:
- Azegi Peak — A demanding climb with views over the Esteribar Valley
- Zotalar Peak — Ridges and technical high-mountain Pyrenean terrain
- Beech and oak forests — Shaded sections on the flanks of Monte Adi
- GR 322 trails — The backbone of the route, marked with red and white blazes
Terrain and difficulty
The terrain is varied and technical: Pyrenean mountain trails, ridges, forested sections, and forest track segments. Difficulty is advanced due to the combination of distance (35 km), cumulative elevation gain (1,800m D+), and technical terrain. In April, expect mud, residual snow at higher elevations, and cool temperatures. Check the best trail running shoes for 2026 to find the right grip for these conditions.
Pairs category
In addition to the individual race, the Nafarroa Xtrem offers the NX35 Bikoteak (pairs) category, where two runners complete the same course together. It is a popular option for those who prefer to share the experience.
How to get there
Zubiri is in the Esteribar Valley, just 25 kilometres from Pamplona via the N-135, the road that climbs towards France through Roncesvalles. The village is a classic stage on the Camino de Santiago and has accommodation available, though limited — booking in advance or staying in Pamplona is advisable.
Use our pace calculator to plan your splits for the 35K, and discover more trail events in Navarra.
Mandatory Gear
According to the official race regulations
360 Complete Pack
Nafarroa Xtrem 2026 Registration
InscripciónRegistration via RockTheSport. Two categories: individual (NX35) and pairs (NX35 Bikoteak). Limited spots.
Browse all inscripciónTips
- • Online registration on RockTheSport (Kronoak)
- • 500 individual bibs and 100 pairs teams
- • Medical certificate or valid federation licence required
- • Registration opened on November 11, 2025
Where to stay for Nafarroa Xtrem
AlojamientoZubiri is a stop on the Camino de Santiago with limited accommodation. Pamplona, 25 minutes away, is the main alternative.
Browse all alojamientoTips
- • Zubiri has hostels and rural guesthouses
- • Pamplona (25 km) offers hotels in all categories
- • Book in advance: April overlaps with Camino de Santiago season
Gear for Nafarroa Xtrem
MaterialDemanding mountain race in the western Pyrenees. Technical terrain with mountain trails, ridges, and forested sections.
Browse all materialTips
- • Trail shoes with strong grip for technical, wet terrain
- • Poles highly recommended to manage 1,800m of elevation gain
- • Windbreaker or rain jacket with sleeves mandatory
- • GPS device with official track loaded mandatory
- • Reusable cup mandatory (no disposable cups at aid stations)
Nutrition for Nafarroa Xtrem
Nutrición35 km with 1,800m D+ requires solid nutrition planning. Aid stations along the course, but carry your own supplies between them.
Browse all nutriciónTips
- • Energy gels and bars mandatory, marked with your bib number
- • Minimum 1L hydration recommended
- • April in the Pyrenees: cool temperatures, lower fluid loss
How to get to Zubiri
TransporteZubiri is in the Esteribar Valley, well connected from Pamplona via the N-135 (road to France).
Browse all transporteTips
- • Pamplona Airport (PNA) is 30 km away
- • Bilbao Airport (BIO) is 160 km away
- • San Sebastián Airport (EAS) is 100 km away
- • Bus service from Pamplona via regional lines
Car rental for Nafarroa Xtrem
Alquiler de vehículoA car is recommended to reach Zubiri and explore the Pyrenean valleys of Navarra.
DRIVALIA
DRIVALIA Alquiler de vehículos por Suscripción CarCloud Country Plus
Suscripción de alquiler de vehículos tipo SUV/crossover, ideal para llegar a carreras de montaña por carreteras rurales y pistas forestales.
DRIVALIA
DRIVALIA Alquiler de vehículos por Suscripción CarCloud City
Suscripción de alquiler de vehículos urbanos, perfecta para desplazarte a carreras con buenos accesos por autovía y carretera convencional.
Tips
- • Zubiri is 25 min from Pamplona via the N-135
- • Great opportunity to visit Roncesvalles and the Pyrenean valleys
Sports insurance for Nafarroa Xtrem
SeguroDemanding mountain race in the Pyrenees. Sports insurance is mandatory to participate.
Browse all seguroTips
- • Federation licence includes basic sports insurance
- • Mountain rescue coverage recommended
- • If travelling from abroad, ensure your insurance covers trail racing
Frequently Asked Questions
- When is Nafarroa Xtrem 2026?
- GR 322 Nafarroa Xtrem takes place on Saturday, April 25, 2026, starting and finishing in Zubiri, Navarra.
- What distances does Nafarroa Xtrem 2026 offer?
- The 2026 edition features the NX35, a 35 km race with 1,800m of elevation gain. There is also a pairs category (NX35 Bikoteak).
- How much does registration cost?
- Individual entry is €45 and the pairs category is €44 per team. Limited to 500 individual bibs and 100 pairs teams.
- What mandatory gear is required?
- Reusable cup, GPS device with the official track loaded, energy gels or bars marked with your bib number, windbreaker or rain jacket with sleeves, and buff or visor depending on weather.
- How do you get to Zubiri?
- Zubiri is in the Esteribar Valley, 25 km from Pamplona via the N-135. It is a classic stop on the Camino de Santiago.
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