Photo: Organisation Grand Raid du Finistère (opens in a new tab) / Source (opens in a new tab)Telgruc-sur-Mer
Grand Raid du Finistère
Friday, 17 September 2027
Your checklist for Grand Raid du Finistère
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
Swipe to see all 7 categories
GPS watch
Done, you already have it
View on Amazon →(opens in a new tab)Amazfit T-Rex 3
2,000-nit AMOLED display in a rugged watch
Downside: Bulky and heavy (68 g)
Gear
Light waterproof windproof
Done, you already have it
View on Amazon →(opens in a new tab)Hoka Speedgoat 7
Max Hoka cushioning: protects your legs over long distances
Downside: High stack: less stable for those who want more ground feel
Nutrition
Eat solid at every base
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
Sweat-resistant SPF50 cream, reapply at aid stations
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 armpits, thighs and feet
Done, you already have it
View on Amazon →(opens in a new tab)Julbo Aerospeed
Photochromic lenses: adapt from forest to summits
Downside: Higher price compared to non-photochromic glasses
Car Rental
Book in advance and check the mileage policy
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
Ultra Trail
Difficulty
Advanced
Distance
4 modalities
GRF 166
- Distance
- 166 km
- Elevation Gain
- D+ 3700m
- Max Time
- -
GRF 92
- Distance
- 92 km
- Elevation Gain
- D+ 2100m
- Max Time
- -
GRF 56
- Distance
- 56 km
- Elevation Gain
- D+ 1200m
- Max Time
- -
GRF 18
- Distance
- 18 km
- Elevation Gain
- D+ 300m
- Max Time
- -
| Modality | Distance | Elevation Gain | Max Time |
|---|---|---|---|
| GRF 166 | 166 km | D+ 3700m | - |
| GRF 92 | 92 km | D+ 2100m | - |
| GRF 56 | 56 km | D+ 1200m | - |
| GRF 18 | 18 km | D+ 300m | - |
Will your watch battery last the ~33 h of Grand Raid du Finistère?Worked out for the longest course (166 km). See which watches reach the finish with GPS on and which die on the way.Check my watch Check my watchGear up for Grand Raid du Finistère
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
14°C – 20°C
Average 17°C
Rain
30%
1.7 mm avg
Wind
21 km/h
max. average
Sunshine hours
10h
daily average
Gear recommendations
Bring a waterproof jacket (30% 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.
Forecast for 17 September
Weather forecast from Open-Meteo (may change until race day)
The ultra at the end of the world
The Grand Raid du Finistère is based in Telgruc-sur-Mer, in the heart of the Crozon peninsula, and uses the GR34 as its backbone. The 166 km and 3,700 m of climbing take in cliffs, sandy coves, fishing villages and the walkways hanging over the Atlantic.
This is not a mountain ultra: the climbing is modest but never stops, and the ground — mud, sand, stone steps — wears you down more than a long pass. Add constant wind and damp air, and sock changes become part of the plan.
Four distances
The GRF 166 starts on Friday night and finishes on Saturday; the 92 km and 56 km start on Saturday morning and the 18 km is a first coastal trail. All finish in Telgruc.
Preparation
Train short intervals and long hours on your feet rather than huge vertical gain. Mandatory kit includes waterproof shell, thermal blanket, headlamp and a charged phone.
Accommodation is tight in Crozon in September: book in Crozon, Douarnenez or Brest. More races at /en/races/francia/bretana/ and kit at /en/planner/.
360Complete Pack
GRF entry
RegistrationThe 166 km and 92 km are the most requested; numbers are capped for safety on the GR34.
Tips
- •Register in spring
- •Take the shuttle if parking is full
Where to stay for GRF
AccommodationBook accommodation near the start in advance: the race weekend fills the area.
Tips
- •Look for accommodation within 30 min of the start
- •Book months ahead if the race falls on a holiday weekend or in summer
Coastal kit
GearAtlantic wind and rain: a breathable waterproof and a warm layer are mandatory.
Tips
- •Light waterproof windproof
- •Shoes with grip for wet rock
Which shoes for Grand Raid du Finistère?
Which footwear fits based on the race's terrain and weather
Which GPS watch for Grand Raid du Finistère?
Which watch has the battery to last based on your estimated finish time
Best Trail Running Poles 2026: Comparison and Buying Guide
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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.
Fuel for 166 km
NutritionThe organisers serve soup and hot meals at the night-time life bases.
Tips
- •Eat solid at every base
- •Drink even without thirst in the wind
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.
Getting to Telgruc
TransportTelgruc-sur-Mer is 45 minutes from Quimper and 30 from Brest on the N165.
Tips
- •You need a car to get there
- •Village car parks are opened
Car rental for GRF
Car RentalA car makes it easier to reach the start and get around before and after the race.
Tips
- •Book in advance and check the mileage policy
- •Useful if your accommodation is far from the start
Sports insurance for GRF
InsuranceCover your participation with insurance that includes medical assistance and mountain rescue.
Tips
- •Check that it covers the race format and elevation gain
- •Review rescue cover if the race is in the mountains
Sun protection for GRF
Sun ProtectionSun exposure takes its toll on long races, especially on exposed sections and at midday.
Tips
- •Sweat-resistant SPF50 cream, reapply at aid stations
- •Protect lips, ears and neck
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.
Body care for GRF
Body CareKilometres and descents punish feet and skin: anti-chafe balm and blister patches prevent DNFs.
Tips
- •Anti-chafe balm on armpits, thighs and feet
- •Blister patches in your pocket
Frequently Asked Questions
- When is the Grand Raid du Finistère 2027?
- The weekend of 17-18 September 2027, starting and finishing in Telgruc-sur-Mer.
- What is the terrain like?
- Almost all on the GR34 customs path around Crozon: cliffs, coves, sand and constant short climbs.
- Is it a fast ultra?
- No: 3,700 m over 166 km is modest but non-stop, and wind plus sand slow the pace badly.
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