Antibes: Plage de la Salis
This is my favourite beach, as in no other location you can swim admiring such a wonderful panorama: from Antibes to the Isle of Corse, passing by the Chatedral of Antibes, the Old Town, the Port Vauban, the Fort Carre`, Cagnes-sur-Mer, Nice and La Turbie (from left to right).
Furthermore, having a cool swim on the 1st of May while the peaks on the Alps yet covered by snow is priceless. :-)