Heard Island and the McDonald Islands form one of Australia's most remote external territories, located in the sub-Antarctic Southern Ocean approximately 4,000 kilometres southwest of Perth. Travel to the territory is extremely rare, restricted to scientific expeditions, and requires Australian government authorisation. A MobiSIM eSIM for Heard Island and McDonald Islands provides a digital data option for eligible travellers, though no terrestrial mobile network exists anywhere in the territory. All connectivity depends on satellite communication systems carried by expedition vessels or research teams. Your QR code is delivered by email after purchase, allowing you to prepare the eSIM on your device before departure. Install and test your eSIM before leaving your departure port, as there is no connectivity available once you reach the islands.
eSIM for Heard Island and McDonald Islands — Instant Data Plans
1 plan available — from €2.99. Instant activation, no physical SIM required.
Useful travel information
A few details that help before and during your trip.
Mobile coverage in Heard Island and McDonald Islands
Heard Island and the McDonald Islands have no permanent population, no civilian infrastructure, and no terrestrial mobile network of any kind. The territory is a UNESCO World Heritage Site and one of the world's most pristine volcanic and glacial environments, with access strictly controlled by the Australian Antarctic Division. Any communication available to expedition visitors relies entirely on satellite systems operated by the expedition team or research vessel. Standard mobile networks, including 4G, 3G, and 2G, are completely absent across the entire territory. MobiSIM eSIM coverage applies only where supported networks exist, and travellers should treat this destination as fully offline from any mobile connectivity standpoint.