It lasts longer than Rio. It follows stricter codes than Venice. And performers and spectators are never further than a confetti-throw from a bar offering bubbly Blanquette de Limoux.
This year the carnival runs from 27 January until 7 April. Three times a day every weekend - plus Mardi Gras - the medieval arcades around the central square resonate to the beat of the drum and the sound of brass and woodwind.
But preceding the band are the dancers - different groups every day - wearing a dazzling array of costumes from the traditional to the downright ridiculous. Whatever they are wearing, they love confetti!