Does my SouthESIM work on the cruise ship while we are out at sea?

Here’s a helpful distinction: standard mobile eSIMs, including SouthESIM, rely on land-based cellular towers. So, when your cruise ship is in the open ocean, far from any coastline, your eSIM won't connect. However, the moment your ship docks at a port, say in Cartagena, Colombia, or Colon, Panama, your SouthESIM will spring to life! You’ll have instant access to local networks, allowing you to share your port adventures without relying on expensive ship Wi-Fi.