{ const t = document.getElementById('trace-toast'); if (!t) return; t.querySelector('.toast-msg').textContent = $event.detail.msg; t.classList.add('show', $event.detail.type === 'danger' ? 'bg-danger' : ($event.detail.type === 'warning' ? 'bg-warning' : 'bg-dark'), 'text-white'); setTimeout(() => t.classList.remove('show'), 3500); })()">
Directions to trailhead
GPX downloaded! Open this trail in Isomaps for offline GPS navigation and topo maps.
No ads, no selling of your data. European mapping, privacy respected.
This route in your pocket: offline maps, guidance and safety alerts.
Distance361.69 km
Elevation gain10637 m
Elevation loss10921 m
Estimated time102 h 30 min
Altitude maximum637 m
Altitude minimum88 m
TypeLoop
DifficultyVery hard
Weather forecast
5-day MeteoBlue forecast at the trail start — free with an account.
Create free account
About this trail
361.69 km loop hiking starting from Pen Mar.
This hike includes 47 significant climbs. With a total elevation gain of 7256 m across 98.35 km, with an average slope of 7.4%.
- Climb 1 (at km 2.44 km): +181 m over 1.42 km, average slope 12.7%
- Climb 2 (at km 4.70 km): +43 m over 587 m, average slope 7.3%
- Climb 3 (at km 7.81 km): +90 m over 1.85 km, average slope 4.9%
- Climb 4 (at km 17.25 km): +379 m over 4.36 km, average slope 8.7%
- Climb 5 (at km 21.36 km): +60 m over 922 m, average slope 6.5%
- Climb 6 (at km 33.34 km): +350 m over 3.89 km, average slope 9.0%
- Climb 7 (at km 37.64 km): +59 m over 1.00 km, average slope 5.9%
- Climb 8 (at km 42.04 km): +99 m over 1.59 km, average slope 6.2%
- Climb 9 (at km 45.00 km): +70 m over 1.93 km, average slope 3.6%
- Climb 10 (at km 54.16 km): +87 m over 2.14 km, average slope 4.1%
- Climb 11 (at km 56.42 km): +42 m over 480 m, average slope 8.8%
- Climb 12 (at km 64.30 km): +199 m over 3.15 km, average slope 6.3%
- Climb 13 (at km 74.36 km): +155 m over 1.98 km, average slope 7.8%
- Climb 14 (at km 78.25 km): +137 m over 1.29 km, average slope 10.7%
- Climb 15 (at km 80.46 km): +106 m over 878 m, average slope 12.1%
- Climb 16 (at km 84.30 km): +167 m over 1.47 km, average slope 11.4%
- Climb 17 (at km 110.85 km): +377 m over 5.48 km, average slope 6.9%
- Climb 18 (at km 119.17 km): +267 m over 3.01 km, average slope 8.9%
- Climb 19 (at km 136.55 km): +272 m over 2.71 km, average slope 10.1%
- Climb 20 (at km 143.81 km): +55 m over 1.36 km, average slope 4.1%
- Climb 21 (at km 147.04 km): +47 m over 970 m, average slope 4.8%
- Climb 22 (at km 150.39 km): +50 m over 1.28 km, average slope 3.9%
- Climb 23 (at km 154.31 km): +76 m over 1.37 km, average slope 5.5%
- Climb 24 (at km 162.36 km): +333 m over 3.94 km, average slope 8.5%
- Climb 25 (at km 170.98 km): +58 m over 1.54 km, average slope 3.8%
- Climb 26 (at km 177.91 km): +157 m over 1.74 km, average slope 9.0%
- Climb 27 (at km 183.23 km): +93 m over 932 m, average slope 10.0%
- Climb 28 (at km 190.32 km): +309 m over 3.68 km, average slope 8.4%
- Climb 29 (at km 193.59 km): +69 m over 1.45 km, average slope 4.8%
- Climb 30 (at km 202.65 km): +106 m over 1.77 km, average slope 6.0%
- Climb 31 (at km 206.40 km): +99 m over 1.20 km, average slope 8.2%
- Climb 32 (at km 213.16 km): +137 m over 1.75 km, average slope 7.8%
- Climb 33 (at km 221.30 km): +81 m over 2.18 km, average slope 3.7%
- Climb 34 (at km 232.65 km): +104 m over 1.49 km, average slope 7.0%
- Climb 35 (at km 245.84 km): +364 m over 2.81 km, average slope 13.0%
- Climb 36 (at km 251.97 km): +235 m over 2.23 km, average slope 10.5%
- Climb 37 (at km 269.56 km): +374 m over 4.93 km, average slope 7.6%
- Climb 38 (at km 285.32 km): +118 m over 2.40 km, average slope 4.9%
- Climb 39 (at km 289.75 km): +75 m over 1.37 km, average slope 5.5%
- Climb 40 (at km 296.82 km): +189 m over 3.26 km, average slope 5.8%
- Climb 41 (at km 306.95 km): +359 m over 2.67 km, average slope 13.5%
- Climb 42 (at km 317.15 km): +174 m over 2.64 km, average slope 6.6%
- Climb 43 (at km 322.79 km): +38 m over 1.53 km, average slope 2.5%
- Climb 44 (at km 329.96 km): +52 m over 1.09 km, average slope 4.8%
- Climb 45 (at km 338.66 km): +260 m over 3.66 km, average slope 7.1%
- Climb 46 (at km 350.59 km): +41 m over 1.07 km, average slope 3.8%
- Climb 47 (at km 356.36 km): +63 m over 1.91 km, average slope 3.3%
isomaps
Scan to open this route in the app
This route in your pocket: offline maps, guidance and safety alerts.
-
Share photos of your trails
Help the community discover what each route really looks like.
-
No ads, no third-party trackers
Privacy-first analytics, hosted in France. Your data stays yours.
-
Truly free — no hidden premium
Topo maps, GPX, offline use included. No premium paywall.
-
A real app, not just a website
iOS + Android with offline topo maps and live GPS navigation.
French independent team — GDPR-native