La Bretonnière

Hiking Hard Created at: March 17, 2026

Informations

Distance 20.61 km
Elevation gain 339 m
Elevation loss 339 m
Altitude minimum 76 m
Altitude maximum 151 m
Altitude Start 131 m
Altitude End 131 m
Estimated hiking time 5 h 30 min
Difficulty Hard

20.61 km loop hiking starting from Boissy-le-Châtel. Elevation gain is 339 m, with altitude ranging from 76 m to 151 m. Estimated time: 5 h 30 min. Starting town: Boissy-le-Châtel (Île-de-France, France).

This hike includes 1 significant climbs. With a total elevation gain of 165 m across 4.14 km, with an average slope of 4.0%.

  • Climb 1 (at km 20.58 km): +165 m over 4.14 km, average slope 4.0%

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