When you're cruising on the Interislander, expect prime connectivity as you depart Wellington and make your approach into Picton. However, like many sea voyages, open water crossings of the Cook Strait and the intricate fjords of the Marlborough Sounds can cause your signal to become a bit patchy. It’s a great time to enjoy the views or pre-download entertainment, but don't count on continuous streaming until you're closer to shore.
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How's the eSIMFlyer connectivity holding up on the New Zealand Interislander ferry across the Cook Strait?
Updated April 22, 2026
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