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Mont-Tremblant's pedestrian village and Lac Tremblant seen from the gondola, with green hills behind
Kimberly Archambault / Unsplash

Boréalys Mont-Tremblant course maps and aid stations

Six races out of Village Tremblant, from a 5.8 km run on the mountain's lower slopes to the 81 km Odyssée over Pic White and Edge.

2027 dates not announced yet, usually in August Mont-Tremblant, Quebec

Boréalys is the UTMB World Series race at Mont-Tremblant, in Quebec's Laurentians, run by Événements Harricana, the team behind the Ultra-Trail Harricana. The first edition was in August 2026. When they announced it, the organizers called it the only World Series event east of the Canadian Rockies.

Every race starts and finishes in Village Tremblant, the resort's pedestrian village at the foot of Mont Tremblant. The courses use trails run by Tremblant, the Domaine Saint-Bernard and the City of Mont-Tremblant. The 2027 dates aren't out yet, so the maps and aid stations here are the 2026 courses.

The 100K goes over Edge twice and comes through Base Nord twice, and most of the shorter races cross the same summit at Pic White. The organizer recommends a GPS watch with the GPX loaded. Take the map on your phone as well: GPS shows where you are on it without a signal.

This is an unofficial guide: Goat Maps isn't affiliated with Boréalys Mont-Tremblant by UTMB. Check the official site before you enter or race.

Boréalys course map

Every course's aid stations on the Goat Maps topo map. Each course has a map of its own further down.

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Boréalys courses

CourseDistanceClimbingStartTime limit
Odyssée 100K81 km (50.3 mi)3,600 m (11,811 ft)Sat, Aug 15, 5:00 AM18 h 5 min
Tremblante 50K46.4 km (28.8 mi)2,400 m (7,874 ft)Sun, Aug 16, 7:00 AM10 h 54 min
Diable 20K26.6 km (16.5 mi)1,645 m (5,397 ft)Sat, Aug 15, 8:00 AM6 h 22 min
Chutes-Croches 20K14.5 km (9 mi)896 m (2,940 ft)Sun, Aug 16, 9:00 AM3 h 35 min
P'tite 5K5.8 km (3.6 mi)379 m (1,243 ft)Sat, Aug 15, 9:00 AM1 h 44 min
Relais 80K81 km (50.3 mi)3,600 m (11,811 ft)Sat, Aug 15, 5:30 AM18 h 5 min

Start times are the 2026 edition's.

Boréalys Odyssée 100K

The long one: 81 km and 3,600 m of climbing, with two passes of Base Nord.

Distance
81 km (50.3 mi)
Climbing
3,600 m (11,811 ft)
Start
Sat, Aug 15, 5:00 AM
Time limit
18 h 5 min

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The 100K leaves the village at 5:00 a.m. on Saturday and heads south, away from the mountain, to a drinks stop at Lac Gauthier and food at the Domaine Saint-Bernard. From Saint-Bernard it's 15.4 km, the longest gap on the course, up to Pic White at 867 m, where the first cutoff is 1:00 p.m. From there you drop to Base Nord at 44 km, where your crew and your drop bag wait.

The second half is a loop out of Base Nord over Edge to Nansen and back over Edge, then the last 10.4 km from Base Nord to the village. The race page gives 81 km and 3,600 m; the regulations say about 79 km and 3,636 m. The organizer's projections have the slowest runners finishing well after sunset, and a headlamp is on the 100K's mandatory kit list. In 2026, 475 runners finished.

aid stations

kmWhereCutoff
0Village Tremblant (start and finish)
12.8Lac Gauthier
18.4Domaine Saint-Bernard
33.8Pic White Sat 1:00 PM
44Base Nord Crew, Drop bagSat 3:15 PM
53.8Edge
61.2Nansen
66.2Edge
70.6Base Nord Crew, Drop bagSat 9:30 PM
81Village Tremblant (start and finish)
Autumn forest falling away from a high point near Mont-Tremblant toward a long lake
Ziyao Xiong / Unsplash

Boréalys Tremblante 50K

46.4 km and 2,400 m on Sunday, with three big climbs.

Distance
46.4 km (28.8 mi)
Climbing
2,400 m (7,874 ft)
Start
Sun, Aug 16, 7:00 AM
Time limit
10 h 54 min

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The 50K starts at 7:00 a.m. on Sunday. The organizer describes three climbs on Pic White and Pic Johannsen, each followed by a technical descent. You top out at Pic White after 9.3 km, drop to Base Nord at 19.4 km (cutoff 11:39 a.m.), then climb to Edge and go down to Nansen at 36.7 km, where the last cutoff is 3:15 p.m. The final 9.7 km climb over the mountain one last time and down to the village. In 2026, 729 runners finished it.

aid stations

kmWhereCutoff
0Village Tremblant (start and finish)
9.3Pic White
19.4Base Nord Sun 11:39 AM
29.2Edge
36.7Nansen Sun 3:15 PM
46.4Village Tremblant (start and finish)
A hiker in a red jacket on a forest trail above the Mont-Tremblant village in autumn
Ali Kazal / Unsplash

Boréalys Diable 20K

Named for the 20K category, but it runs 26.6 km with 1,645 m of climbing.

Distance
26.6 km (16.5 mi)
Climbing
1,645 m (5,397 ft)
Start
Sat, Aug 15, 8:00 AM
Time limit
6 h 22 min

Take this course offline

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The Diable sits in the 20K category but runs 26.6 km, with two climbs up Mont Tremblant and two descents. It starts at 8:00 a.m. on Saturday and reaches Pic White after 9.2 km, then drops to Base Nord at 16.2 km, where the cutoff is 11:45 a.m. The last 10.4 km climb back over the mountain and down to the village.

Boréalys Chutes-Croches 20K

14.5 km and 896 m along the river, then up Pic White and back down.

Distance
14.5 km (9 mi)
Climbing
896 m (2,940 ft)
Start
Sun, Aug 16, 9:00 AM
Time limit
3 h 35 min

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The shortest of the four races that earn Running Stones starts at 9:00 a.m. on Sunday. It follows the rapids of the Rivière du Diable, then makes one climb to Pic White, the only stop on the course, at 9.2 km. The last 5.3 km are downhill to the village. The time limit is 3 hours 35 minutes, and finishing it earns a Running Stone.

Boréalys P'tite 5K

5.8 km and 379 m through the village and up the lower slopes.

Distance
5.8 km (3.6 mi)
Climbing
379 m (1,243 ft)
Start
Sat, Aug 15, 9:00 AM
Time limit
1 h 44 min

Take this course offline

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The P'tite 5K starts at 9:00 a.m. on Saturday, goes through the village streets and climbs onto the lower slopes of the mountain, with a drinks stop at the Flying Mile after 3 km. Runners must be at least 13. It doesn't count for Running Stones.

Boréalys Relais 80K

Teams of two to six on the Odyssée course, raising money for two causes.

Distance
81 km (50.3 mi)
Climbing
3,600 m (11,811 ft)
Start
Sat, Aug 15, 5:30 AM
Time limit
18 h 5 min

Take this course offline

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The relay runs the 100K's course, starting at 5:30 a.m. on Saturday, half an hour after the 100K. Teams of 2 to 6 split six legs of 16.8, 15.0, 9.8, 17.1, 8.7 and 11.2 km and hand over a baton at Saint-Bernard, Pic White, Base Nord, Nansen and Base Nord again. There are no shuttles between the exchanges: teammates get there on their own.

Entry is CAD 575 per team plus the 8% admin fee, and each team raises at least $500 for the Quebec Epilepsy Association or the Fondation Tremblant. It's non-competitive: no UTMB Index and no Running Stones.

aid stations

kmWhereCutoff
0Village Tremblant (start and finish)
12.8Lac Gauthier
18.4Domaine Saint-Bernard
33.8Pic White Sat 1:00 PM
44Base Nord Sat 3:15 PM
53.8Edge
61.2Nansen
66.2Edge
70.6Base Nord Sat 9:30 PM
81Village Tremblant (start and finish)

Registration

For 2026, entry opened on September 16, 2025 at 9:00 a.m. Eastern for runners with a UTMB Index, and 48 hours later for everyone else. There was no lottery and no waitlist, and registration ran until July 24, 2026 unless a race sold out first.

The 2026 fees, taxes included, were CAD 269 to 309 for the 100K, 179 to 209 for the 50K, 85 to 102 for the Chutes-Croches and 45 to 69 for the P'tite 5K, plus an 8% admin fee. You must be 18 for the 100K and 50K, 16 for the two 20Ks and the relay, and 13 for the 5K. You also need insurance that covers rescue, repatriation and medical costs in Canada. If you live in Canada, your provincial health insurance already counts.

You can move to a shorter distance up to four weeks before the race, but you can't defer to a later year.

Getting there

An aerial view of the colorful roofs of the Mont-Tremblant resort village among green trees
A K / Unsplash

Montreal is about 1.5 to 2 hours away by car: Autoroute 15 north, which becomes Route 117 after Sainte-Agathe, then exit 119 at Montée Ryan and follow the signs for the resort. From Ottawa it's about 2 hours, from Toronto 5 to 6.

Montréal-Trudeau (YUL) is the airport to fly into. Tremblant runs coach transfers from it with Orléans Express and Keolis, and Galland buses run from downtown Montreal to Mont-Tremblant every day. Once you're in town, the city's buses are free.

Bib pickup is at the Chalet des Voyageurs from 11:00 a.m. on Friday, and on Saturday for the Sunday races. The 100K, 50K and relay briefing is on Friday at 7:00 p.m. in the village. RVs and trailers can park overnight in section C of lot P4, first come, first served.

Crews, drop bags and spectators

A gondola cabin climbing a mountainside in autumn color, with lakes and hills spread out below
Ziyao Xiong / Unsplash

Only 100K runners can have a crew, and only at Base Nord, on both passes. Your crew is one person, who needs an Assistance ticket and works from the single 30-liter bag the organizer hands out at check-in. They can give you food, drinks and gear, but only the race's medical team can treat you. Pacers aren't allowed in any race.

Drop bags are also for the 100K only: you leave the bag at the start and see it at Base Nord, both times. Poles can't go in it, and if you use poles you carry them from the start.

Friends who just want to watch can drive to the Domaine Saint-Bernard (the park charges an entry fee) or to Base Nord (free), or reach Pic White on foot or by the paid panoramic gondola.

Weather and kit

A hiker in a red jacket on a forest trail above the Mont-Tremblant village in autumn
Ali Kazal / Unsplash

August in Saint-Jovite, just down the road, averages a high of 24.5°C and a low of 9.8°C (1991 to 2020 normals). The organizer warns it can be hot and humid, above 30°C, and cool quickly at night. Sunset is around 8:06 p.m.

The hot-weather kit raises the 100K and 50K water requirement from 1 to 2 liters and adds sunscreen, SPF 50 recommended. In the 20K, 50K and 100K races you carry a phone with a plan that works in Canada and the LiveTrail app, switched on and out of airplane mode. A headlamp is required only for the 100K. Gear is checked at bib pickup and may be checked again anywhere on the course.

Boréalys aid stations and GPS coordinates

For crews and spectators: each place on the map in decimal degrees, latitude first. Paste them into any map app or add them as waypoints in Goat Maps.

  • Village Tremblant (start and finish)

    230 m (755 ft)

    46.20974, -74.58571

  • Lac Gauthier

    293 m (961 ft)

    46.17805, -74.54033

  • Domaine Saint-Bernard

    276 m (906 ft)

    46.18139, -74.56795

  • Pic White

    867 m (2,844 ft)

    46.21986, -74.55261

  • Base Nord

    358 m (1,175 ft)

    46.22505, -74.52322

  • Edge

    839 m (2,753 ft)

    46.23209, -74.55322

  • Nansen

    388 m (1,273 ft)

    46.22437, -74.58525

  • Flying Mile

    573 m (1,880 ft)

    46.22053, -74.57180

Boréalys FAQ

When is Boréalys Mont-Tremblant 2027?

The 2027 dates haven't been announced. The first edition ran August 14 to 16, 2026, with the 100K on Saturday and the 50K on Sunday. The maps on this page are the 2026 courses.

How many Running Stones do you get at Boréalys?

Three for finishing the Odyssée 100K, two for the Tremblante 50K and one each for the Diable 20K and Chutes-Croches 20K. The P'tite 5K and the relay give none.

Can you have a pacer at Boréalys?

No. Pacers aren't allowed in any of the races.

Where can crews meet 100K runners?

Only at Base Nord, which the 100K passes at 44 km and 70.6 km. Your crew needs the Assistance ticket and the official 30-liter bag. It's free to drive to.

How technical are the Boréalys trails?

The organizer describes rocks, roots, steep climbs and dense boreal forest, typical of the Laurentians, in August heat. Even the Diable climbs 1,645 m in 26.6 km.

Do I need insurance to run Boréalys?

Yes. Every runner needs cover for rescue, repatriation and medical costs in Canada, which the entry fee doesn't include. If you live in Canada, your provincial health insurance meets the requirement.

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Updated . An unofficial guide, from the organizer's published information. Coordinates from the organizer's course and OpenStreetMap contributors. Photos from Unsplash. Organize a race? We help with course files.