This particular CoreESIM plan is geo-restricted for use exclusively within Martinique. Travelers frequently utilize inter-island ferries, such as L'Express des Îles, to visit neighboring destinations like St. Lucia, Dominica, or Guadeloupe. It is crucial to note that St. Lucia and Dominica are independent nations, and your Martinique-specific eSIM will not provide connectivity there. For multi-island itineraries, CoreESIM advises selecting a regional Caribbean eSIM plan that encompasses all your desired destinations for seamless service.
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Is this CoreESIM plan valid for nearby Caribbean islands like St. Lucia?
Updated April 22, 2026
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