Plage des Sables Blancs, Sand beach in Plouharnel, France

Plage des Sables Blancs is a sand and shingle beach in Plouharnel, Morbihan, on the bay of Quiberon, roughly 400 km west of Paris. It faces the Atlantic in a mild oceanic climate averaging 13 °C, with February lows near 4 °C and July highs near 21 °C.

The shoreline became a popular bathing destination in the 19th century when villas were built overlooking the water and the region transformed from a fishing settlement into a seaside resort. This change reflects the broader shift that many French coastal towns experienced during that period.

The name Sables Blancs refers to the pale sand that contrasts with the darker rocks along this part of the Plouharnel coast. Bathers reach the beach on footpaths from the village and from the nearby campsites, and the shoreline is shared with walkers heading toward the Quiberon peninsula. The bay's orientation means the water stays shallow for some distance at low tide.

The water is most enjoyable at low tide when more sand exposes and natural rock formations become more visible across the beach. Both paid and free parking are available nearby, so arriving early helps secure the best spot.

The name Sables Blancs refers to the pale sand, but the beach sits at the foot of the dunes of Plouharnel, near the megalithic alignments of Carnac and the abbey of Saint-Colomban in Carnac, a few kilometres east. The bay opens toward Quiberon Bay, and the sandbar of the Sables Blancs is exposed at low tide.