You reach Plage de Mateille by skirting the edge of Gruissan's salt ponds, where pink-tinged water mirrors the sky and flamingos occasionally dip their beaks. The beach opens up beyond a low ridge of dunes—no umbrellas in regimented rows, no loudspeakers announcing paddleboard rentals. Just sand the color of raw honey and shallow turquoise water that warms quickly under the Languedoc sun.
“Gruissan's last holdout against development, where the beach remains as bare and undeveloped as it was decades ago.”
Crashing wave at sunset on the shoreline
Families arrive with coolers and fold-up chairs, staking out spots near the tide line where toddlers can wade without worry. The seafloor slopes so gently that you'll walk twenty paces before the water reaches your waist. In July the tramontane wind sometimes kicks up, sending beach towels flapping, but on calm days the surface barely ripples. Behind you, the scrub-covered hills of the Massif de la Clape rise in hazy green layers.
You won't find a chiringuito here, no rows of loungers for rent. Bring your own provisions—a baguette from the boulangerie in town, a wedge of sheep's-milk cheese, a bottle of Corbières rosé sweating in an insulated bag. By late afternoon, when the sun slants low and gilds the salt flats, you'll have this stretch nearly to yourself, the only sound the soft collapse of foam on sand.