Uharte-Arakil
Uharte-Arakil Beriain Km Bertikala
Sunday, 19 September 2027estimated date
Km Bertikala 5K
5km D+ 1023m
Uharte-Arakil Beriain Km Bertikala 2027: estimated date 19 September 2027
The organiser has not published the official 2027 schedule yet. The estimated date is based on last year's edition; we'll confirm it as soon as it's announced. Start sorting your gear and logistics.
Race data
| Modality | Distance | Elevation Gain | Max Time | Price |
|---|---|---|---|---|
| Km Bertikala 5K | 5 km | D+ 1023m | 1h 45min | 20 EUR |
Uharte-Arakil Beriain Km Bertikala requires mandatory gear: get it sorted early
Buying guides with the best value for money, picked for this kind of terrain.
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See comparisonWhat you need
Salomon
Salomon Speedcross 6
Salomon
Salomon ADV Skin 12
Maurten
Maurten Gel 100
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
13°C – 22°C
Average 17°C
Rain
40%
2.2 mm avg
Wind
13 km/h
max. average
Sunshine hours
10h
daily average
Gear recommendations
Bring a waterproof jacket (40% 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.
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.
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.
Sun protection essential (10h sunshine, up to 22°C)
Forecast for 19 September
Real-time data from Open-Meteo
Uharte-Arakil Beriain Km Bertikala: Sakana’s Vertical Kilometer
The Km Bertikala is the vertical kilometer race connecting Uharte-Arakil with the summit of Beriain (San Donato), the most iconic peak in the Sakana valley in Navarra. Now in its 16th edition, it’s one of the most established vertical races on the Navarrese calendar, counting for both the Navarre Championship and the Euskal Herriko Kopa.
The 5 km course climbs 1,023 m of elevation gain, starting from the town square at 471 m and finishing at the chapel of San Donato at 1,494 m. A pure, grueling ascent that tests endurance and mental toughness.
The Course: From Oak Forest to Summit
The race starts from the Uharte-Arakil town square, passes through the Itxesi neighborhood to the swimming pool area, and enters a dense oak forest. The woodland gradually gives way to beech forest as altitude increases, before the final open sections leading to the summit.
Key course details:
- 5 km distance, 1,023 m D+
- Cutoff at Auntzaldapa (km 3.3): 50 minutes
- Maximum time: 1 hour 45 minutes
- Staggered pair start
- Finish at the San Donato chapel with panoramic views of all Sakana
Uharte-Arakil and the Sakana Valley
Uharte-Arakil is a small Navarrese municipality at the foot of the Aralar mountain range, in the heart of the Sakana valley. Well-connected by train and road, it’s a strategic base between Pamplona and the Basque Country.
The summit of Beriain (1,494 m) is the highest point of the Andia/Urbasa range visible from across the valley. At the top stands the San Donato chapel, a traditional pilgrimage site. On clear days, the views from the summit span from the Pyrenees to the Cantabrian coast.
Check out other races in Navarra and plan your season with the planner.
Mandatory Gear
According to the official race regulations
Reusable cup (no cups provided at aid stations)
Emergency thermal blanket
360Complete Pack
Km Bertikala 2026 Registration
Registration16th edition of the Uharte-Arakil to Beriain vertical kilometer. Limited to 220 runners.
Browse all registrationTips
- •Registration open from July 1 to September 15, 2026
- •Price: €20 federated / €23 non-federated
- •Limited to 220 participants on a first-come, first-served basis
- •Staggered start in pairs with 20-second to 2-minute intervals
Where to Stay for the Km Bertikala
AccommodationUharte-Arakil is in the Sakana valley, well-connected and with nearby accommodation options.
Browse all accommodationTips
- •Alsasua (10 km) and Etxarri-Aranatz (5 km) have guesthouses and rural hotels
- •Pamplona (35 km) offers hotels of all categories
- •The Sakana valley has several charming rural houses
- •September is mid-season, but book ahead as this is a championship race
Gear for the Km Bertikala
GearVertical kilometer with 1,023 m of elevation gain in 5 km. Forest and mountain terrain with very steep sections.
Salomon
Salomon Speedcross 6
Salomon's most versatile trail shoe, ideal for technical terrain and mud. Exceptional grip with Contagrip sole and EnergyCell+ cushioning.
Salomon
Salomon ADV Skin 12
Chaleco de hidratación de 12 litros con sistema SensiFit. Dos soft flasks frontales de 500 ml incluidas. Bolsillos de fácil acceso y ajuste ceñido sin rebotes.
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.
Black Diamond
Black Diamond Distance Carbon Z
Ultralight carbon Z-pole foldable trekking poles. 137 g per pole in 110 cm length, 33 cm folded. EVA grip and adjustable strap. The trail running reference.
Hoka
Hoka Speedgoat 7
The best-selling trail shoe in the US and an absolute ultra-trail classic. Max Hoka cushioning, a Vibram Megagrip outsole with 5 mm lugs for grip in mud and technical terrain, and a snug Matryx upper. Built to eat up kilometres without punishing your legs in long races.
Altra
Altra Lone Peak 9
Trail running shoe with zero drop and wide FootShape toe box that allows natural toe splay. 25 mm stack with EGO foam for balanced cushioning without losing ground contact. MaxTrac outsole with 3.5 mm lugs, ideal for non-technical trails, forest tracks and long-distance paths.
New Balance
New Balance Fresh Foam X Hierro v9
The model breaking into Spain's best-seller charts. Fresh Foam X midsole with a solid balance between cushioning and ground feel, a Vibram Megagrip outsole, and a comfortable last suited to wide feet. A reliable all-rounder for training runs and mountain races of any distance.
Saucony
Saucony Peregrine 16
The all-round trail shoe par excellence, with excellent reviews across every type of runner. PWRTRAC outsole with 5 mm lugs for grip on mixed and technical terrain, balanced PWRRUN cushioning, and rock-plate protection depending on the version. The perfect middle ground between responsiveness and protection.
Tips
- •Aggressive grip trail shoes are essential for the steepest sections
- •Waterproof hooded jacket is mandatory gear
- •Light pack or vest to carry mandatory equipment
- •Poles are not mentioned in the regulations but can help on the climb
Which shoes for Uharte-Arakil Beriain Km Bertikala?
Which footwear fits based on the race's terrain and weather
Which GPS watch for Uharte-Arakil Beriain Km Bertikala?
Which watch has the battery to last based on your estimated finish time
Best Trail Running Poles 2026: Comparison and Buying Guide
The best trail running poles in 2026, compared on technical criteria: Black Diamond Distance Carbon Z, Leki Ultratrail FX.One, Komperdell Carbon FXP Trail and Cascade Mountain Tech. Weight, folded length, aluminium vs carbon, technique and how to pick your size.
Best Trail Running Hydration Vests 2026: Comparison and Buying Guide
In-depth comparison of the best hydration vests and packs for trail running in 2026: Salomon ADV Skin 12 Set, Salomon Active Skin 8, CamelBak Octane, Compressport UltRun Vest, NNormal Race Vest, AONIJIE 10L and HANKER waist belt. Soft flasks vs reservoir, how many litres by distance, how to stop the vest bouncing and how much water to carry.
Best Value Trail and Mountain GPS Watches 2026: Comparison and Buying Guide
The best value-for-money trail and mountain GPS watches in 2026: Coros Pace 3, Amazfit T-Rex 3 and Cheetah Pro, Garmin Forerunner 165 and Suunto Race 2. How much a good trail watch costs, which ones have cheap offline maps, whether an Amazfit performs like a Garmin and which watch to buy for your budget. Figures verified against the manufacturer.
Nutrition for the Km Bertikala
NutritionShort but maximum intensity race. Hydration and quick energy are key.
Maurten
Maurten Gel 100
Gel de hidrogel con 25g de carbohidratos. La tecnología de hidrogel encapsula los carbohidratos para una absorción sin molestias gástricas. Sabor neutro, sin edulcorantes artificiales. Usado por corredores de élite en maratón y ultra.
226ERS
226ERS Isotonic Drink
Bebida isotónica en polvo de la marca española 226ERS. Aporta carbohidratos, electrolitos y minerales para mantener la hidratación durante el ejercicio. Fórmula con amilopectina para absorción rápida sin molestias digestivas.
Crown Sport Nutrition
Crown Sport Nutrition 3:1 Recovery+
Recuperador muscular a base de proteína de suero aislada (whey isolate) con ratio carbohidratos-proteína 3:1, enriquecido con L-Leucina y L-Glutamina. Certificado Informed Sport y sin alérgenos añadidos. Formato de 750 g, sabor sandía.
GU
GU Energy Gel Original
Gel energético con 100 calorías y 21g de carbohidratos por sobre. Mezcla de maltodextrina y fructosa para absorción óptima. Incluye aminoácidos y electrolitos. El gel más usado en ultratrails de todo el mundo.
Victory Endurance
Victory Endurance Total Recovery
Preparado en polvo para bebida de recuperación post-entreno con carbohidratos, electrolitos y proteína en ratio BCAA 2:1:1. Incluye 12 vitaminas y 9 minerales para acelerar la recuperación muscular tras un trail largo. Formato de 1250 g, sabor sandía.
226ERS
226ERS Recovery Drink
Muscle recovery shake from Spanish brand 226ERS. Formula with whey protein, amylopectin, amino acids (including glutamine and BCAAs) and minerals. Carb-to-protein ratio optimised for the post-exercise window. Good taste and digestive tolerance.
226ERS
226ERS Sub9 Pro Salts Electrolytes
The caffeinated version of Sub9 Salts: 250 mg of sodium and 40 mg of caffeine per capsule, plus potassium, magnesium and ginger. Made for the final stretch of an ultra, when you need to replace salts and get a lift without opening another caffeine gel.
226ERS
226ERS Sub9 Salts Electrolytes
Mineral salt capsules with 250 mg of sodium each, plus potassium, magnesium and ginger extract for better digestive tolerance. The highest sodium per capsule from Spain's benchmark endurance brand. Zero calories: you replace salts without touching your gel plan.
Tips
- •A gel before or during the climb can make the difference
- •Reusable cup is mandatory: no cups are provided at aid stations
- •500 ml of hydration is enough for the distance
- •Light breakfast 2-3 hours before the start
Best salt tablets and sodium capsules for running 2026
A comparison of the 7 best salt tablets and sodium capsules for running and trail 2026: 226ERS Sub9 Salts, Crown Pro Salt Caps, Victory Endurance, Precision Hydration PH 1500 and more. How many salt tablets to take per hour, how to calculate your sweat rate and which format to choose.
How to Get to Uharte-Arakil
TransportUharte-Arakil has good road and train connections from Pamplona and the Basque Country.
Browse all transportTips
- •From Pamplona: 35 min via the A-10/AP-15
- •From San Sebastián: 1h 15min via the AP-1 and A-10
- •From Bilbao: 1h 30min via the AP-68 and A-10
- •Train: Uharte-Arakil station on the Pamplona-Alsasua line
- •Parking available near the town square
Car Rental for the Km Bertikala
Car RentalAlthough Uharte-Arakil has a train station, a car gives more flexibility to explore Sakana.
DRIVALIA
DRIVALIA Alquiler de vehículos por Suscripción CarCloud City
Urban vehicle rental subscription, perfect for getting to races with good highway and conventional road access.
Carla
Carla Car Rental - Reserva ahora, paga después
Car rental comparison in over 180 countries with free cancellation. Book now and pay when you pick up the vehicle, no hidden fees or upfront card charges.
DRIVALIA
DRIVALIA Alquiler de vehículos por Suscripción CarCloud Country Plus
SUV/crossover vehicle rental subscription, ideal for reaching mountain races via rural roads and forest tracks.
Hertz
Hertz - Alquiler de coches
Car rental with one of the world's most recognised brands, with offices at airports and cities across Spain.
Tips
- •Pamplona and San Sebastián have rental offices at airports and city centers
- •Easy roads with no mountain passes to get there
Sports Insurance for the Km Bertikala
InsuranceChampionship mountain race. Registration includes liability and accident insurance.
Browse all insuranceTips
- •Registration includes liability and accident insurance
- •Federated runners: your license covers participation (€20)
- •Non-federated: day insurance is included in the price (€23)
- •Under-16s require parental authorization
Body Care for the Km Bertikala
Body CareShort but intense race. September mountain weather can be variable.
Buff
Buff CoolNet UV+
Multifunctional tubular with UPF 50+ UV protection and cooling technology. Can be worn as neck gaiter, headband, balaclava or wristband. CoolNet fabric reflects UV rays and cools the skin by evaporation.
Salomon
Salomon Cross Visor
Ultralight trail running visor with absorbent sweatband and breathable fabric. The visor shields the face from the sun without trapping heat like a closed cap, ideal for summer races.
Julbo
Julbo Aerospeed
Sport sunglasses with Reactiv photochromic lenses that automatically adapt to light conditions (category 1 to 3). Designed for trail running with non-slip temples and integrated ventilation.
OOFOS
OOFOS OOriginal Sport
Unisex recovery sandal with patented OOfoam technology, which absorbs 37% more impact than conventional EVA foam and reduces stress on feet, ankles and back after exertion. Closed thong-style toe post with built-in arch support in the footbed. Machine washable.
Therabody
Theragun Mini (2.ª generación)
Compact massage gun with QuietForce motor and 3 speeds (1750-2400 percussions/min). Weighs just 500g and fits in your race vest or bag. Ideal for self-massage of quads, calves and glutes after a trail.
Compex
Compex Ayre Recovery Boots
Pneumatic pressotherapy boots with 4 sequential air chambers. Dynamic compression that improves venous return and speeds up toxin elimination after mountain races. 3 pressure levels and 20-30 minute sessions. Built-in rechargeable battery.
Salomon
Salomon Mangas Running
Lightweight, breathable and absorbent running sleeves from Salomon, with a comfortable adaptable fit for variable mountain temperature conditions.
Salomon
Salomon Polaina Cuello Merino
Salomon merino wool neck gaiter. Natural warmth, breathable and odour-resistant even after several uses without washing, key for multi-day ultras. Versatile use in the mountains and premium trail running.
Tips
- •Vaseline on feet to prevent blisters on the steepest sections
- •Cap or visor if the climb is sunny
- •Mandatory thermal blanket also works as emergency protection
Sun Protection for the Km Bertikala
Sun ProtectionSeptember in Navarra: still strong sun, especially on the upper treeless section.
ISDIN
ISDIN Fotoprotector Fusion Water SPF 50+
Ultralight water-phase facial sunscreen with SPF 50+. Fluid texture that absorbs instantly with no greasy residue, ideal for applying during a race. Water and sweat resistant.
Sun Bum
Sun Bum Sunscreen Lip Balm SPF 30
Lip balm with SPF 30 sun protection in stick format. Moisturises and protects lips from sunburn, a spot many runners forget. Coconut flavour, paraben-free.
Cantabria Labs
Heliocare 360º Sport Transparent Stick SPF 50+
Transparent SPF 50+ sun stick, 25 g, with 360º protection (UVA, UVB, visible light and infrared). Goes on dry in seconds over face, ears, neck and bald scalp with no sticky hands and no white cast: the format built for reapplying at an aid station. High water and sweat resistance, from a Spanish pharmacy brand.
Columbia
Columbia Schooner Bank II Cachalot
Legionnaire-style cap with neck flap, ideal for long-duration races with intense sun exposure. Covers the neck and ears, two of the areas most prone to sunburn in the mountains.
Julbo
Julbo Aero
Sports sunglasses with a Reactiv photochromic lens that automatically adapts to changing light, an ultralight panoramic frame and the Air Link temple system for a secure, pressure-free fit. Built for high-mountain trail running, where light shifts constantly between forest, rock and open summits.
Buff
Buff Venture Gorra 5 Panel
Lightweight 5-panel cap with UPF 50+ protection, breathable fabric and comfortable fit. Ideal for summer trail running races where weight and ventilation are a priority.
d'Alba
d'Alba Air Fit Fresh Stick SPF 50+ PA++++
Facial SPF 50+ PA++++ sun stick, 19 g, Korean skincare, vegan and fragrance-free. Dry, powdery finish, not sticky, doesn't sting the eyes when you sweat: comfortable for daily training and shorter races. The lightest and cheapest option in the comparison.
Piz Buin
Piz Buin Mountain SPF 50+
Mountain sunscreen with SPF 50+ formulated for extreme altitude conditions. Extra protection against intensified UV radiation and cold wind. Rich texture that protects skin from dehydration.
Tips
- •SPF 50 recommended for the upper section above the treeline
- •Apply before the start: the race is too short to reapply
- •Lip balm with sun protection
Best Sunscreen for Runners 2026: 7 Sweat-Proof SPF 50 Picks
Which sunscreen survives a sweaty long run? We tested 7 SPF 50 sweat-proof picks — creams, sticks and a lip balm — against heat, altitude UV and hours of sweat. See the winner.
Frequently Asked Questions
- When is the Uharte-Arakil Beriain Km Bertikala 2026?
- The 16th Km Bertikala takes place on Sunday, September 20, 2026, starting at 10:00 AM from Uharte-Arakil (Navarra, Spain).
- What is the distance and elevation of the Km Bertikala?
- 5 km with 1,023 m of elevation gain, from 471 m in Uharte-Arakil to the 1,494 m summit of Beriain (San Donato).
- How much does it cost to register for the Km Bertikala 2026?
- €20 for federated runners and €23 for non-federated. Registration runs from July 1 to September 15, 2026. Limited to 220 participants.
- How do I get to Uharte-Arakil?
- Uharte-Arakil is in the Sakana valley (Navarra), 35 km from Pamplona via the A-10/AP-15. The nearest train station is Uharte-Arakil (Pamplona-Alsasua line).
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