Nature reserve
A refuge for biodiversity :
A natural… and historical heritag
Practical Info for Your Visit
Tourist Information Point:
During the summer, the OTCI welcomes you at the Maison du Platier d’Oye (1005 route des Dunes, Oye-Plage).
The site remains fragile:
Trampling can damage vegetation and accelerate wind erosion. Please stay on marked paths.
A living dune in perpetual evolution
The dune, shaped by wind and sea currents, is constantly evolving. When sand accumulates, it makes the coast advance towards the sea. But at the Les Écardines site, storms nibble away at the dune, threatening to have the sea breach the cordon. To reinforce this fragile environment, piles have been installed and marram grass (oyats) grasses that fix the sand have been planted.
A rich and changing landscape
Behind the white dunes, the grey dune offers a carpet of flowering mosses in spring. It gradually transforms into a dense and impenetrable space, colonized by shrubs like sea buckthorn, black elderberry, or wild privet, which shelter a fauna rich in passerines. Further on, one discovers an herbaceous moor dotted with ponds and mudflats, between fresh water and salt water: a true sanctuary for birds.
To discover with a guide
- Every first Sunday of the month, the Nature Guides association organizes a guided tour.
- Discover their website : platier.free.fr
- Download the trail map

