Is mobile data from SouthESIM needed for GPS in a St. Barths rental car?

Yes, absolutely! While St. Barths is small, its charming roads can be quite winding and signs are often minimal. Relying on your SouthESIM for real-time GPS navigation with apps like Google Maps or Waze is incredibly helpful. It ensures you can confidently find your way to hidden beaches like Saline or chic boutiques in Gustavia, making your island exploration smooth and stress-free.