Super U

Super U is a full-size supermarket a short walk from Calvi's town center — think proper aisles, a real deli counter, fresh produce, wine, and everything else you'd expect from a major French chain (roughly on par with a Sainsbury's or Safeway). Open daily including Sunday mornings until 12:45, it also offers vehicle rental if you're looking to explore beyond town. It's the kind of place where you can actually do a proper shop, not just grab snacks.