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Les 21 kms Mer, Monts et Marais2026

20.09.2026Blonville sur Mer (France)
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Pacing, fueling and crew sheet for the course you pick

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21 km

Trail 21 kmlongest of 3 courses

3 courses

  1. 5km

    Trail

    20.09.

    No index

  2. 12km

    Trail

    20.09.

    No index

  3. 21km

    Trail

    20.09.

    No index

GPX trace not yet published.

Race plan

Plan your race from start to finish.

Pacing, aid stations and fueling timed to your effort on Les 21 kms Mer, Monts et Marais, in one roadbook.

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The race

A 21 km loop in nature with elevation changes, offering magnificent landscapes to discover.

Where to stay

Find a place to stay near Blonville sur Mer for the race.

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