Yes, usually! Many cruise lines' private islands, like Norwegian's Harvest Caye in Belize or Holland America Line's Half Moon Cay in the Bahamas, are situated within the range of local cellular towers. This means your SouthESIM will generally connect to the local networks on these islands. You can typically expect good coverage to share your sunny selfies or check messages while enjoying the private beach paradise, just as if you were on the mainland.
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Will I have coverage on private islands such as Harvest Caye or Half Moon Cay?
Updated April 22, 2026
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