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Hiking by department · 95

Hiking in Val-d'Oise

92

routes

10.9 km

median distance

117 m

median elevation gain

The French Vexin supplies the finest starts. La Roche-Guyon, set against a chalk cliff above the Seine, gives the department's most spectacular start, with its medieval keep hollowed into the slope.

Parmain and Méry-sur-Oise line the Oise and give onto the Auvers slopes, the ones Van Gogh painted in his final months. The paths cross wheat fields and orchards.

Montlignon and Saint-Leu-la-Forêt open onto the Montmorency forest, the largest chestnut wood in the Paris region, reachable by train and threaded with quiet valleys.

When to go — All year; autumn is superb in the Montmorency forest, and the Vexin slopes stay walkable in winter.

OpenRando lists 92 hiking routes in Val-d'Oise. The median distance is 10.9 km, and most routes fall between 6.3 and 17.7 km — from an afternoon loop to a full day out.

On the climbing side, the median elevation gain is 117 m, and the most demanding routes exceed 271 m. Enough range to pick your effort by season and by form.

The most common starting points cluster around: La Roche-Guyon, Méry-sur-Oise, Montlignon, Parmain, Saint-Leu-la-Forêt, Vétheuil. Every route comes with its GPX track, elevation profile and interactive map.

Longest routes in Val-d'Oise

  • Boucle Château d'Auvers‑sur‑Oise – Château d’Auvers au départ de Valmondois28.4 km
  • Boucle du Vexin — Parc Naturel Régional du Vexin Français27.6 km
  • Boucle Tour du Plumet – Château de la Chasse au départ de Bouffémont - Moisselles26.3 km

All routes in Val-d'Oise