Race data
Terrain
Mountain
Difficulty
Advanced
Distance
1 modalities
Kaxtrail 45K
Price: 50 EUR
- Distance
- 45 km
- Elevation Gain
- D+ 3000m
- Max Time
- -
| Modality | Distance | Elevation Gain | Max Time | Price |
|---|---|---|---|---|
| Kaxtrail 45K | 45 km | D+ 3000m | - | 50 EUR |
Will your watch battery last the ~12 h of Kaxtrail?Worked out for the longest course (45 km). See which watches reach the finish with GPS on and which die on the way.Check my watch Check my watchYour checklist for Kaxtrail
What you need, category by category, with our #1 pick for this race. Tick what you already have.
0 of 6 ready
GPS watch
Done, you already have it
View on Amazon →(opens in a new tab)Garmin Forerunner 165
Sharp AMOLED display at an entry-level price
Downside: No multi-band GPS (less accurate in canyons and dense forest)
Gear
Shoes with aggressive lugs: mud and wet leaves are normal in the Baztan in October
Done, you already have it
View on Amazon →(opens in a new tab)
Salomon Speedcross 6
Agarre excepcional en barro y terreno técnico
Downside: Durabilidad media en asfalto
Nutrition
One gel or 40-60 g of carbohydrate per hour from the start
Done, you already have it
View on Amazon →(opens in a new tab)
Maurten Gel 100
Tecnología de hidrogel: excelente tolerancia gástrica
Downside: Precio elevado respecto a otros geles
Sun Protection
Sweat-resistant SPF 50 on face and ears
Done, you already have it
View on Amazon →(opens in a new tab)
ISDIN Fotoprotector Fusion Water SPF 50+
Ultralight texture, feels invisible on skin
Downside: Small format (50 ml), may run short on ultras
Body Care
Anti-chafe balm on feet, underarms, groin and waist before the start
Done, you already have it
View on Amazon →(opens in a new tab)
BodyGlide Original Anti-Chafe Balm
Easy-to-apply stick format, even with sweaty hands
Downside: Higher price than traditional petroleum jelly
Car Rental
Pick it up at Pamplona airport or city centre
Done, you already have it
View on Amazon →(opens in a new tab)
DRIVALIA Alquiler de vehículos por Suscripción CarCloud Country Plus
Trip logistics
Registration, travel and insurance: what you should have sorted before race day.
Affiliate links: if you buy, we earn a commission at no extra cost to you.
Seasonal kit
Rain and mud at Kaxtrail: pack this kit
Grippy shoes, rain jacket, gaiters and blister protection for a wet race.
See the full kit : Rain and Mud Trail Running Kit 2026: What to Bring to a Wet RaceKaxtrail requires mandatory gear: get it sorted early
Buying guides with the best value for money, picked for this kind of terrain.
Swipe to see all 4 comparisons
Historical weather
What to wear at 15 °C: guide and kit →
Typical weather for the race date (10-year average)
Temperature
10°C – 17°C
Average 13°C
Rain
43%
4.1 mm avg
Wind
16 km/h
max. average
Sunshine hours
8h
daily average
Gear recommendations
Bring a waterproof jacket (43% chance of rain)
Asics
Asics Gel-Trabuco 14 GTX
A best-selling beginner trail shoe: GEL cushioning, good stability and a waterproof GORE-TEX membrane. Versatile and reliable for training on mixed terrain in any weather.
Berghaus
Berghaus Paclite 2.0 GTX
Waterproof jacket with a Gore-Tex Paclite membrane (around 330 g). Fully waterproof with taped seams, fixed adjustable hood, storm flap behind the zip and cuff adjustment. Packs down small in a vest. Heavier than a pure running hardshell, but it meets the waterproof-breathable membrane requirement in race rules and is the affordable route into Gore-Tex.
Brooks
Brooks Cascadia 20 GTX
The Cascadia 20 with a GORE-TEX membrane: stability and protection for rocky mountain terrain, keeping the foot dry on cold, rainy days.
Gore Wear
Gore Wear C5 GORE-TEX Glove
Glove with a fully waterproof, windproof GORE-TEX membrane and light insulation. The pick for running in snow, sleet or heavy rain while keeping your hand dry.
Gore Wear
Gore Wear M GORE-TEX Thermo Glove
Warmer variant of the Gore Wear C5 GORE-TEX: the same fully waterproof, windproof membrane, with extra thermal lining for intense cold on top of snow or rain. The pick when the problem isn't just water, but water AND hard cold at once.
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.
Nike
Nike Pegasus Trail 5 GORE-TEX
The best-selling gateway trail shoe: comfortable, cushioned and versatile for moving from road to trail. Waterproof GORE-TEX version, perfect for beginners and easy runs on mixed terrain.
Salomon
Salomon Bonatti Pro Waterproof Glove
Lightweight waterproof glove built for running, not just standing still in the snow: a waterproof membrane with more dexterity and less bulk than a thick membrane glove, for sustained rain without giving up handling gels or poles.
Salomon
Salomon Bonatti WP
Chaqueta cortavientos impermeable ultraligera (135 g). Costuras selladas, capucha ajustable y ventilación trasera. Se pliega en su propio bolsillo.
Salomon
Salomon Speedcross 6 GTX
The Speedcross 6 with a GORE-TEX membrane: the same aggressive 5 mm lugs for mud and soft ground, now waterproof for winter, rain and snow.
Sealskinz
Sealskinz Waterproof Lightweight Glove
Lightweight waterproof glove from a brand that specializes in outdoor sport waterproofing. A solid middle ground between a thin windproof glove and a thick membrane glove: genuinely waterproof without the bulk or price of the Gore C5.
TRIWONDER
TRIWONDER Polainas Impermeables Trail
Waterproof, breathable low gaiters for trail running, hiking and mountain use. Under-shoe strap and adjustable elastic band. A budget-friendly alternative to premium technical brand gaiters.
Bring thermal layers (low of 10°C)
Buff
Buff Thermonet
Buff tubular térmico con tecnología Primaloft. Retiene el calor corporal, ultraligero y polivalente: gorro, braga, cinta. Ideal para alta montaña.
Craft
Craft Pro Hypervent LS Wind Top
Thermal top with a windproof ripstop panel on the chest and a highly ventilated soft jersey back. Built for high-intensity sessions in cold, windy conditions, with long cuffs and thumb loops.
HANKER
HANKER Braga de Cuello Térmica
Unisex thermal seamless neck gaiter in Soft Air Plus fabric (97% polyester). Seamless fit designed for trail running, cycling, motorcycling and outdoor sports. A budget alternative to Buff for moderate cold.
Icebreaker
Icebreaker Merino 200 Oasis LS Crewe
Long-sleeve thermal top in 100% merino wool (200g). Natural temperature regulation, genuine multi-day odor resistance and a soft, non-itch handfeel from the fine merino yarn.
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.
Odlo
Odlo I-Thermic Longsleeve Mujer
Women's long-sleeve thermal top with insulating panels placed over cold-sensitive areas (lower back and kidneys). A mid-layer built for genuinely cold winter conditions, mountain outings or cross-country-style trail sessions.
ROCKBROS
ROCKBROS Pasamontañas Térmico y Cortaviento
Thermal windproof balaclava covering head, ears, cheeks and neck. Designed for cycling and motorcycling, it works just as well on windy, freezing trail runs.
Salomon
Salomon Agile LS Tee
Lightweight quick-dry polyester long-sleeve tee with underarm mesh, a side pocket and reflective details. Works as a standalone layer in mild cold or as a base layer under a windbreaker on colder days.
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.
Under Armour
Under Armour ColdGear Armour Compression Mock
Compression thermal top with a dual-layer fabric: ultra-warm brushed interior and quick-dry exterior. Second-skin compression fit with stretch mesh panels at the back and underarms for ventilation without losing warmth.
Under Armour
Under Armour ColdGear Armour Compression Mock Hombre
Men's high-neck thermal compression top: brushed interior that holds heat and a quick-dry outer. Base layer for cold-weather runs.
Forecast for 24 October
Weather forecast from Open-Meteo (may change until race day)
Kaxtrail
Kaxtrail is a mountain race of 45 km and about 3,000 m of positive elevation held on 24 October 2026 in Erratzu, in the Baztan valley (Navarre). It is a one-off special edition: a tribute to Xabier Rekarte «Kaxtel», a local of Erratzu, on the tenth anniversary of his death.
A 45 km course through the mountains of Erratzu
The official profile marks three summits: Gorramakil (1,085 m), Iparla (1,044 m) and Auza (1,306 m), the highest point. That adds up to 3,000 m D+ over Navarrese Pyrenean terrain, with beech forests, ridges and long descents that punish legs and feet. The start is at 8:00 am.
Three ways to take part
- Individual 45 km race: the main challenge, for the best-prepared mountain runners.
- Pair relay (men’s, women’s or mixed): two runners share the course.
- 24 km hiking walk: at an easy pace, through the most beautiful parts of the route.
A race built by the community
Kaxtrail grew out of auzolan, the Basque tradition of community work: a group of Erratzu locals organises everything to keep Kaxtel’s memory alive along with his values of passion for the mountains, friendship and cooperation. After the race there will be cultural, musical and gastronomic events in the village.
2026 edition logistics
Registration is handled by Kronoak through RockTheSport: €50 for the individual race, €70 for pair relays and €10 for the walk. It opened on 5 March and closes on 17 October.
The Baztan beyond the race
October is the best time of year in the Baztan for the autumn colours. Take the chance to stroll around Elizondo or visit Zugarramurdi. For more races in the region, see the Navarre race calendar and add this one to your planner.
Mandatory Gear
According to the official race regulations
Check the official rules: in October in the Baztan you should always carry a windproof or waterproof layer
360Complete Pack
Kaxtrail 2026 registration
RegistrationOnline registration with Kronoak on RockTheSport, open from 5 March until 17 October 2026.
Tips
- •45 km individual: €50; relay: €70 per pair; 24 km walk: €10
- •Registration closes on 17 October 2026
- •One-off edition: there is no guarantee it will return, so don't wait until the last day
- •Read the official rules (downloadable on the registration page) before paying
Where to stay for Kaxtrail
AccommodationErratzu is a small village in the Baztan. There are rural houses, guesthouses and apartments in the valley, and more choice in Elizondo.
Tips
- •Erratzu and Elizondo (about 8 km away) are the most convenient bases
- •Book early: October is high season in the Baztan for the autumn colours
- •With an 8:00 am start, sleep as close to the start line as you can
Gear for Kaxtrail
Gear45 km and 3,000 m D+ in autumn in the Navarrese Pyrenees: grip for mud and wet leaves, warm layers and hydration for a full day.
Tips
- •Shoes with aggressive lugs: mud and wet leaves are normal in the Baztan in October
- •Keep a windproof or waterproof jacket in your vest: Auza is above 1,300 m
- •Poles are highly recommended to bank 3,000 m of ascent
- •A vest with 1.5-2 L capacity for the stretches between aid stations
Which shoes for Kaxtrail?
Which footwear fits based on the race's terrain and weather
Which GPS watch for Kaxtrail?
Which watch has the battery to last based on your estimated finish time
Best Neck Gaiter (Buff) for Trail Running 2026: Comparison & Buying Guide
Comparison of the best neck gaiters for trail running in 2026: Buff Original, Midweight, Windproof, DryFlx, CoolNet UV+, Thermonet, HANKER and Salomon Merino. Which to pick based on sun, wind, cold or budget.
Best Thermal Base Layer for Trail Running 2026: Comparison & Buying Guide
The best thermal base layers for trail running in 2026: Odlo Active Warm Eco, Icebreaker Merino 200 Oasis, Craft Pro Hypervent, Under Armour ColdGear, Salomon Agile LS Tee and Odlo I-Thermic. Which to pick based on cold, sweat management, merino wool, compression or built-in wind protection.
Best Trail Running Gaiters 2026: 3-Way Comparison
Comparing the 3 best trail running gaiters in 2026: Salomon Trail Gaiters High, Salomon Trail Gaiters Low and TRIWONDER waterproof gaiters. Which to pick by terrain and budget.
Nutrition for Kaxtrail
NutritionWith 45 km and 3,000 m D+ you will be on the move for 7 to 10 hours: you need a plan built on gels, electrolytes and real food.
Tips
- •One gel or 40-60 g of carbohydrate per hour from the start
- •Alternate gels with bars, dates or fruit to avoid flavour fatigue
- •Take salts or electrolytes even if it is cool: you sweat more than you think
- •Eat a full breakfast 2-3 hours before the 8:00 am start
How to get to Erratzu
TransportErratzu is in the Baztan valley, about 55 km from Pamplona via the N-121-A and a few kilometres from the French border.
Tips
- •From Pamplona: about 55 minutes via the N-121-A and NA-121
- •From San Sebastián: 1 h 15 min via the A-8/AP-8 and N-121-A
- •Nearest airports: Pamplona, San Sebastián and Biarritz
- •Public transport is very limited: driving is the practical option
Car rental for Kaxtrail
Car RentalThe Baztan has no train and few buses: a car lets you reach the 8:00 am start without stress.
Tips
- •Pick it up at Pamplona airport or city centre
- •Make the most of it to visit Elizondo, Zugarramurdi or the Otsondo pass
Sports insurance for Kaxtrail
InsuranceA 45 km mountain race with lots of climbing: check what the registration covers and whether your federation licence is up to date.
Tips
- •Check the official rules for the insurance included in the registration
- •If you hold a mountain federation licence, check that it covers this type of event
- •An annual licence also covers your mountain training
Body care for Kaxtrail
Body CareMany hours with damp feet on long descents: prevent chafing and blisters, and recover well afterwards.
Tips
- •Anti-chafe balm on feet, underarms, groin and waist before the start
- •Technical socks and a spare pair in your finish bag
- •Dry, warm clothes waiting for you at the finish
Sun protection for Kaxtrail
Sun ProtectionThe October sun is milder, but exposed summits like Auza and a 7-10 hour day call for protection.
Tips
- •Sweat-resistant SPF 50 on face and ears
- •Lip balm with SPF if the day is clear
- •Light sunglasses for the ridge sections
Frequently Asked Questions
- When is Kaxtrail 2026?
- On Saturday 24 October 2026, starting at 8:00 am from Erratzu in the Baztan valley (Navarre).
- What distances and categories does Kaxtrail offer?
- An individual 45 km race with about 3,000 m of positive elevation, a pair relay (men's, women's or mixed) in which two runners share the course, and a 24 km hiking walk.
- How much does Kaxtrail 2026 cost?
- The individual 45 km race costs €50, the relay €70 per pair and the 24 km walk €10. Registration is handled by Kronoak through RockTheSport and closes on 17 October.
- Will there be more editions of Kaxtrail?
- The organisers present it as a one-off special edition, a tribute to Xabier Rekarte «Kaxtel» on the tenth anniversary of his death. No future edition has been announced.
- Which summits does Kaxtrail cross?
- The official profile marks three summits: Gorramakil (1,085 m), Iparla (1,044 m) and Auza (1,306 m), the highest point of the course.
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