Photo: Berroetako Mendi Elkartea (opens in a new tab)Berroeta
Berroeta Mendi Maratoi Erdia
Saturday, 8 May 2027estimated date
Mountain Half Marathon
21.6km D+ 1274m
15K
15km D+ 737m
New Route
10km D+ 0m
Your checklist for Berroeta Mendi Maratoi Erdia
What you need, category by category, with our #1 pick for this race. Tick what you already have.
0 of 7 ready
Swipe to see all 8 categories
Swipe to see all 8 categories
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
Shoes with strong grip: the Baztan is one of the wettest areas in Navarra
Done, you already have it
View on Amazon →(opens in a new tab)Salomon Speedcross 6
Exceptional grip in mud and technical terrain
Downside: Average durability on pavement
Nutrition
Carry at least 500ml of water or a soft flask
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 recommended even in the humid Baztan
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
Anti-chafe balm on contact areas: Baztan humidity increases friction
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
Pamplona Airport (PNA) 70 km away
Done, you already have it
View on Amazon →(opens in a new tab)DRIVALIA CarCloud City
Mandatory
Charged mobile phone
Fully charged
Done, you already have it
View on Amazon →(opens in a new tab)Generic Running Waist Pack with Phone Pocket
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.
Mandatory Gear
According to the official race regulations
Charged mobile phone
Fully charged
Items tagged “Mandatory” are in the checklist above, with a recommended product.
Race data
Terrain
Mountain
Difficulty
Intermediate
Distance
3 modalities
Mountain Half Marathon
Price: 22 EUR
- Distance
- 21.6 km
- Elevation Gain
- D+ 1274m
- Max Time
- 3h30
15K
Price: 22 EUR
- Distance
- 15 km
- Elevation Gain
- D+ 737m
- Max Time
- 2h30
New Route
Price: 22 EUR
- Distance
- 10 km
- Elevation Gain
- D+ 0m
- Max Time
- 2h
| Modality | Distance | Elevation Gain | Max Time | Price |
|---|---|---|---|---|
| Mountain Half Marathon | 21.6 km | D+ 1274m | 3h30 | 22 EUR |
| 15K | 15 km | D+ 737m | 2h30 | 22 EUR |
| New Route | 10 km | D+ 0m | 2h | 22 EUR |
Will your watch battery last the ~5 h of Berroeta Mendi Maratoi Erdia?Worked out for the longest course (21.6 km). See which watches reach the finish with GPS on and which die on the way.Check my watch Check my watchBerroeta Mendi Maratoi Erdia 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 10 °C: guide and kit →
Typical weather for the race date (10-year average)
Temperature
8°C – 17°C
Average 12°C
Rain
53%
3.4 mm avg
Wind
18 km/h
max. average
Sunshine hours
10h
daily average
Gear recommendations
Bring a waterproof jacket (53% 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 8°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 8 May
Weather forecast from Open-Meteo (may change until race day)
Berroeta Mendi Maratoi Erdia
The Berroeta Mendi Maratoi Erdia is a mountain race organized by Berroetako Mendi Elkartea in the Baztan Valley (Navarra, Spain). A growing event that reflects the rise of trail running in one of the greenest valleys of the Navarrese Pyrenees.
The courses
From the square in Berroeta, the courses head into the Baztan mountains:
- Mendi Maratoi Erdia (21.6K) — 1,274m elevation gain on the full course. Climb to the summit of Saioa through beech forests and mountain trails.
- 15K — 737m elevation gain on a shorter but equally demanding course.
- New Route (10K) — A new addition for this ninth edition, designed for those seeking a more accessible distance.
Terrain and difficulty
The Baztan mountains offer forests, meadows, and mountain trails typical of the Atlantic Pyrenees. Humidity is constant in this area, making good-grip footwear essential. The full 21.6K course with 1,274m elevation gain is a serious mountain challenge, while the 15K and 10K offer more accessible options. Check the recommended trail running shoes for wet terrain.
Saioa and the Baztan Valley
Saioa (1,418m) is the reference summit on the long course. The Baztan Valley, with its scattered farmhouses and ancient beech forests, is one of the most iconic landscapes of Navarra. Berroeta is one of the 15 villages that make up the municipality of Baztan. Discover more races in Navarra.
May weather in the Baztan
May in the Baztan Valley is wet and green. Temperatures range from 10-18°C, but rain is frequent and fog can appear at higher elevations. It is the rainiest area in Navarra, so a rain jacket is a must in your pack.
360Complete Pack
Berroeta Mendi Maratoi Erdia 2026 Registration
RegistrationRegistration open on Herrikrosa from March 1 until race day (May 9 at 08:45). Minimum age 18.
Tips
- •€22 for both distances
- •Online registration on Herrikrosa
- •Registration closes on race day at 08:45
Where to Stay for the Berroeta Mendi Maratoi Erdia
AccommodationBerroeta is in the heart of the Baztan Valley, an area with a good selection of rural guesthouses.
Tips
- •Elizondo (Baztan capital) 10 minutes away with more accommodation options
- •Rural guesthouses throughout the Baztan Valley
- •Pamplona 1 hour away if you prefer a city
Gear for the Berroeta Mendi Maratoi Erdia
GearMountain trail through the wet Baztan forests and mountain paths.
Tips
- •Shoes with strong grip: the Baztan is one of the wettest areas in Navarra
- •Waterproof jacket essential in May
- •Light pack with water for the 15K course
Which shoes for Berroeta Mendi Maratoi Erdia?
Which footwear fits based on the race's terrain and weather
Which GPS watch for Berroeta Mendi Maratoi Erdia?
Which watch has the battery to last based on your estimated finish time
Best Trail Running Poles 2026: Comparison and Buying Guide
Best trail running poles 2026: Black Diamond, Leki and Komperdell compared. Carbon vs aluminium, folding length, technique and how to pick your size.
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 Plan for the Berroeta Mendi Maratoi Erdia
NutritionShort to medium mountain distances. Hydration is key on demanding terrain.
Tips
- •Carry at least 500ml of water or a soft flask
- •A couple of gels should be enough for the 15K
- •Solid breakfast 2-3 hours before the start
How to Get to Berroeta
TransportBerroeta is in the Baztan Valley, northern Navarra, close to the French border.
Tips
- •From Pamplona: 1h via N-121-A towards France
- •From San Sebastián: 1h via A-15 and N-121-A
- •From Bayonne (France): 45 min via Dantxarinea
- •Parking available in the village
Car Rental for the Berroeta Mendi Maratoi Erdia
Car RentalA car is essential to reach Berroeta. There is no regular public transport to the Baztan Valley.
Tips
- •Pamplona Airport (PNA) 70 km away
- •Biarritz Airport (BIQ) 60 km as an alternative
- •Mountain roads in good condition but winding
Sports Insurance for the Berroeta Mendi Maratoi Erdia
InsuranceCheck with the organization for federation license or day insurance requirements.
Tips
- •Federation license or day insurance recommended
- •Mountain rescue coverage recommended
Body Care for the Berroeta Mendi Maratoi Erdia
Body CareMountain trail in the humid Baztan Valley. Protect feet and chafing zones.
Tips
- •Anti-chafe balm on contact areas: Baztan humidity increases friction
- •Technical anti-blister socks for wet terrain
Sun Protection for the Berroeta Mendi Maratoi Erdia
Sun ProtectionMay in the Navarrese mountains: variable sun but hours of exposure at altitude.
Tips
- •SPF 50 recommended even in the humid Baztan
- •Protect your lips with SPF balm
- •Cap or visor for exposed sections
Best Sunscreen for Runners 2026: 7 Sweat-Proof SPF 50 Picks
Which sunscreen survives a sweaty long run? We compared 7 SPF 50 sweat-proof picks — creams, sticks and a lip balm — on heat, altitude UV and sweat resistance. See the winner.
Frequently Asked Questions
- When is the Berroeta Mendi Maratoi Erdia 2026?
- The ninth edition takes place on Saturday, May 9, 2026, starting from the square in Berroeta (Baztan Valley, Navarra).
- What distances does the Berroeta Mendi Maratoi Erdia have?
- Three distances: the Mendi Maratoi Erdia of 21.6K with 1,274m elevation gain, the 15K with 737m elevation gain, and a new 10K route.
- How much does registration cost?
- Registration costs €22 for both distances. It is managed through the Herrikrosa platform.
- How to get to Berroeta?
- Berroeta is in the Baztan Valley, about 60 km from Pamplona via the N-121-A. From France, access through the Dantxarinea border crossing.
- Who organizes the race?
- Berroetako Mendi Elkartea, the mountain association of Berroeta. Contact: berroetakoherria@gmail.com / 626 532 452.
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