Bera
Bera Mountain Half Marathon
Sunday, 18 April 2027estimated date
Mountain Half Marathon
21.81km D+ 1376m
Your checklist for Bera Mountain Half Marathon
What you need, category by category, with our #1 pick for this race. Tick what you already have.
0 of 6 ready
Swipe to see all 7 categories
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GPS watch
Done, you already have it
View on Amazon →(opens in a new tab)Garmin Instinct 3 AMOLED 45 mm
Onboard topo maps, unlike the Instinct 3 Solar
Downside: Shorter battery life than the Instinct 3 Solar (no solar charging or MIP display)
Gear
Trail shoes with aggressive grip: mountain terrain with possible mud in April
Done, you already have it
View on Amazon →(opens in a new tab)Nike Ultrafly
ZoomX foam: exceptional energy return inherited from the Vaporfly
Downside: High price (190 EUR)
Nutrition
10 aid stations spread along the course: no need to carry too much food
Done, you already have it
View on Amazon →(opens in a new tab)Maurten Gel 100
Hydrogel technology: excellent gastric tolerance
Downside: High price compared to other gels
Sun Protection
SPF 50 sunscreen on face, neck, and arms
Done, you already have it
View on Amazon →(opens in a new tab)ISDIN Fusion Water Sunscreen SPF 50+
Ultralight texture, feels invisible on skin
Downside: Small format (50 ml), may run short on ultras
Body Care
Vaseline on feet, thighs, and underarms to prevent chafing
Done, you already have it
View on Amazon →(opens in a new tab)Squirrel's Nut Butter Anti-Chafe Cream
Car Rental
Rent in San Sebastián or Pamplona and drive to Bera
Done, you already have it
View on Amazon →(opens in a new tab)DRIVALIA 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.
Race data
Terrain
Mountain
Difficulty
Intermediate
Distance
1 modalities
Mountain Half Marathon
- Distance
- 21.81 km
- Elevation Gain
- D+ 1376m
- Max Time
- -
| Modality | Distance | Elevation Gain | Max Time |
|---|---|---|---|
| Mountain Half Marathon | 21.81 km | D+ 1376m | - |
Will your watch battery last the ~6 h of Bera Mountain Half Marathon?Worked out for the longest course (21.81 km). See which watches reach the finish with GPS on and which die on the way.Check my watch Check my watchGear up for Bera Mountain Half Marathon
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
9°C – 18°C
Average 13°C
Rain
37%
2.8 mm avg
Wind
17 km/h
max. average
Sunshine hours
10h
daily average
Gear recommendations
Bring a waterproof jacket (37% 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
Ultralight Gore-Tex Shakedry waterproof jacket (110 g). Full waterproofing without an inner membrane, highly breathable. The benchmark for mountain runners.
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
Ultralight waterproof windproof jacket (135 g). Taped seams, adjustable hood and back ventilation. Packs into its own pocket.
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.
Shokz
Shokz OpenRun
Open-ear bone conduction headphones with IP67 rating: they take rain, mud and a rinse under the tap. Up to 8 h of battery and quick charge (10 min for 1.5 h). The most rugged pick of the range for training in bad weather.
TRIWONDER
TRIWONDER Waterproof Trail Gaiters
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 9°C)
Buff
Buff Thermonet
Thermal tubular Buff with Primaloft technology. Traps body heat, ultralight and versatile: hat, neck gaiter, headband. Ideal for high mountain.
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 Thermal Neck Gaiter
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
Long-sleeve thermal base layer made from recycled fabric with anti-odour treatment. Active thermal regulation, ideal as a base layer in the mountains.
Odlo
Odlo I-Thermic Women's Longsleeve
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 Thermal Windproof Balaclava
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
Long trail tights with stretchy, breathable fabric. Adjustable waist, zipped back pocket. Protection from cold and vegetation.
Salomon
Salomon Cross Warm Glove
Thermal running gloves with a non-slip palm and touchscreen fingertips. Light, warm and compatible with poles.
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 (Men's)
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 18 April
Weather forecast from Open-Meteo (may change until race day)
Bera Mountain Half Marathon
The Bera Mountain Half Marathon is one of the most established mountain races in Navarre. In 2026 it celebrates its 20th edition, organised by the Manttale Mendi Lasterketa Taldea club in this village in the Bidasoa valley, on the border with France.
The course is a true mountain adventure: 21.81 km with 1,376 metres of elevation gain, starting from 32 metres altitude in Bera and climbing to the 900-metre summit of Larun (La Rhune in French), the iconic mountain on the Basque-French border.
The course
The race starts from Bera’s sports centre (Kanttonberri kalea) and traverses the mountains surrounding the village:
- Km 4-5: Postas-Manttale area, first steep climbs
- Km 6.6: Ibardin, the famous border crossing with its shops
- Km 10: Usategieta, deeper into the mountains
- Km 10.8: Landagaita, key midpoint
- Km 13: Zizkuitz, final ramp before Larun
- Km 14: Larun summit (900m), the highest and most spectacular point
- Km 15-21: Descent via Zizkuitz, Landagaita, and Zumalku to the finish
This is a new course for this edition, meaning the historical records by Oier Ariznabarreta (1:37:30) and Ainhoa Sanz (1:56:56) won’t be in play.
Terrain and difficulty
The terrain is pure mountain: trails, forest tracks, and summit sections across the border mountains. The elevation ratio is high (63 m/km), making this half marathon a demanding test. Altitude ranges from 32 metres by the Bidasoa river to 900 metres atop Larun.
The time limit is 3 hours and 40 minutes, with cut-off controls at key points along the course.
Logistics
Bib collection takes place on Saturday evening (5:00-6:30 PM) and Sunday morning (8:00-9:00 AM) at Bera’s cultural centre. The baggage storage closes 30 minutes before the start.
There are 3 retirement points for those who need to drop out: Ibardin (km 6), Usategieta (km 10), and Landagaita return (km 17).
A Bidasoa classic
Bera is one of the five villages of the Bortziriak (Five Towns), in the far north of Navarre. The race is part of the Navarre Mountain Racing Circuit and attracts runners from Navarre, the Basque Country, and southern France.
With 525 spots and 20 years of history, it’s a must-run on the Navarre spring calendar. Check your season planner to combine it with other races in the area.
360Complete Pack
Registration for Bera Mountain Half Marathon 2026
Registration20th edition of the Bera Mountain Half Marathon. 525 spots available. Part of the Navarre Mountain Racing Circuit.
Tips
- •525 bibs available — registration closes April 16 if not sold out
- •No refunds under any circumstances
- •Name transfers accepted until April 9
- •Bib collection: Saturday 18th (5:00-6:30 PM) and Sunday 19th (8:00-9:00 AM) at Bera cultural centre
Where to stay for the Bera Mountain Half Marathon
AccommodationBera is a small village in the Bidasoa valley with limited accommodation. Book early or look at nearby towns.
Tips
- •Bera has rural guesthouses and small hotels
- •Lesaka and Etxalar are 5-10 km away with rural tourism options
- •Hondarribia and Irún are 25 km away with more hotel options
- •San Sebastián is 70 km away as a larger base
Gear for the Bera Mountain Half Marathon
GearDemanding mountain race with 1,376m D+ over 21 km. Varied terrain across border mountains between Spain and France, climbing to 900m at Larun.
Tips
- •Trail shoes with aggressive grip: mountain terrain with possible mud in April
- •Windbreaker mandatory: Larun summit at 900m can be very windy
- •Hydration pack or vest: 21 km of mountain running with significant elevation
- •Poles optional but useful for the 1,376m of climbing
Which shoes for Bera Mountain Half Marathon?
Which footwear fits based on the race's terrain and weather
Which GPS watch for Bera Mountain Half Marathon?
Which watch has the battery to last based on your estimated finish time
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Best Trail Running Hydration Vests 2026: Comparison and Buying Guide
Best trail running hydration vests 2026: 12 vests and packs compared. How many litres you need by distance, soft flasks vs reservoir, and fit.
Strength Training Gear for Trail Running at Home 2026: Comparison and Buying Guide
Comparison of the best strength training gear for trail runners at home: dumbbells, resistance bands, kettlebell, TRX, weight bench and foam roller, with a 3-day-a-week routine.
Nutrition for the Bera Mountain Half Marathon
Nutrition21 km with heavy elevation requires solid nutrition planning. There are 10 aid stations along the course.
Tips
- •10 aid stations spread along the course: no need to carry too much food
- •3-4 gels for the toughest climbs
- •Good breakfast 2-3 hours before the 9:30 AM start
- •The total elevation (2,752m) burns significant calories: don't skimp on nutrition
How to get to Bera
TransportBera is in the far north of Navarre, in the Bidasoa valley on the French border.
Tips
- •San Sebastián Airport (EAS): 55 km
- •Biarritz Airport (BIQ): 40 km
- •Pamplona Airport (PNA): 80 km
- •By road: N-121-A from Pamplona or AP-8 from San Sebastián
Car rental for Bera
Car RentalA car is essential to reach Bera. Public transport to the village is infrequent.
Tips
- •Rent in San Sebastián or Pamplona and drive to Bera
- •The N-121-A through the Bidasoa valley is a spectacular drive
- •Take the chance to visit the Bortziriak (Five Towns): Bera, Lesaka, Etxalar, Igantzi, Arantza
Sports insurance for the Bera Mountain Half Marathon
InsuranceMountain race on demanding terrain. Check insurance requirements with the organisation.
Tips
- •Federation licence or day insurance usually required
- •The Navarre mountain federation offers single-day licences
- •If you already have a federation licence, verify it covers mountain races
Body care for the Bera Mountain Half Marathon
Body Care21 km of mountain running with heavy elevation demands proper foot and skin care.
Tips
- •Vaseline on feet, thighs, and underarms to prevent chafing
- •Technical trail socks: possible moisture and mud in April
- •Kinesiology tape on knees if prone to downhill discomfort
- •The descents total 1,376m: prepare your quads well
Sun protection for the Bera Mountain Half Marathon
Sun ProtectionApril in northern Navarre: variable sun, but UV radiation can be significant at altitude.
Tips
- •SPF 50 sunscreen on face, neck, and arms
- •Lip balm with SPF
- •Larun at 900m receives more UV radiation than the valley
- •April in Navarre can alternate sun and clouds: protect yourself regardless
Frequently Asked Questions
- When is the Bera Mountain Half Marathon 2026?
- The 20th edition takes place on Sunday, April 19, 2026, starting at 9:30 AM from Kanttonberri kalea (Bera sports centre).
- What is the distance and elevation?
- 21.81 km with 1,376m of elevation gain and 1,376m of descent (2,752m total). Maximum altitude of 900m at Larun and minimum of 32m in Bera.
- How many spots are available?
- 525 bibs. Registration opened on March 2, 2026, and closes on April 16 (if not sold out earlier). No refunds, but name transfers are accepted until April 9.
- What is the time limit?
- 3 hours and 40 minutes. There are cut-off times at Manttale (km 4.8: 55 min), Landagaita (km 11: 1h 40 min), Larun (km 14: 2h 40 min), and Landagaita return (km 17: 3h 05 min).
- What are the course records?
- Men: Oier Ariznabarreta with 1:37:30 (2014). Women: Ainhoa Sanz with 1:56:56 (2019). In 2026, records cannot be broken as it is a new course.
- How to get to Bera?
- Bera is in the far north of Navarre, on the French border. 70 km from San Sebastián and 80 km from Pamplona. Access via the N-121-A road (Bidasoa valley).
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