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All outdoor activities
Hiking, trail running, cycling, ski touring, snowshoeing.
French independent team — GDPR-native
Distance20.97 km
Elevation gain13 m
Elevation loss13 m
Estimated time5 h 10 min
Altitude maximum8 m
Altitude minimum0 m
TypeLoop
DifficultyHard
Weather forecast
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About this trail
20.97 km loop hiking starting from Brielle.
isomaps
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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
