eSIM in Madagascar: from Antananarivo to the RN7 and the lemur parks
Madagascar isn't about fast travel: distances look short on a map, but a drive between towns can take a full day because of road conditions and mountains. The classic route runs down the RN7 from the capital, Antananarivo, south toward the coast, stopping at national parks along the way to see lemurs and chameleons. Mobile coverage holds up well in towns and largely disappears between them, so planning for a day without data isn't a backup plan — it's the norm for this trip.
Antananarivo: your last reliable signal before the road
The capital is where you should finish anything that needs a stable connection: downloading offline maps of the southern provinces, booking hotels a few days ahead, and messaging your guide or driver if the RN7 trip is arranged through a local operator. Ivato Airport is some way from the centre, and a taxi or transfer is usually arranged in advance through the hotel's contact.
Coverage in Antananarivo itself is solid almost everywhere, including the markets and old hillside quarters, so it makes sense to install the eSIM here and confirm everything works before you leave the city.
The Malagasy ariary isn't always easy to exchange outside the big cities, and ATMs get scarcer past Antananarivo, so it's worth withdrawing cash for the road while you still have a choice of banks and signal to check the rate.
The RN7: hundreds of kilometres where signal is the exception, not the rule
The RN7, linking the capital to Fianarantsoa and Toliara in the south, is considered one of the country's best roads, but that doesn't mean fast: the trip stretches over several days with overnight stops in towns like Ambositra or Ranohira. Between those towns, mobile signal often disappears for dozens of kilometres at a stretch, especially in mountainous or sparsely populated sections.
The sensible approach is to download an offline map of the whole route beforehand and to keep a printout or screenshot of each night's hotel booking rather than relying on messages sent on the road. If you're travelling with a driver, agree on the day's plan in the morning, while you still have signal in the last town.
National parks: no signal for the lemurs, but a ranger instead
In parks like Ranomafana, Isalo and Andasibe-Mantadia, where visitors come to see lemurs and chameleons, there's usually no mobile signal at all on the forest trails — ranger radios work far more reliably than any carrier. At the park entrance and in the nearby village, signal is usually available, and that's where to download anything you need before setting off.
Park visits go with a local guide who knows the trails and the animals' habits, so on the walk itself the phone is mostly for photos rather than navigation — it's harder to get lost with a guide than it is to lose signal.
A checklist for a signal-free day between towns
Worth preparing the evening before you leave a town with solid coverage.
- an offline map of the next stretch of the RN7 or your other route
- screenshots or printouts of hotel bookings for the coming nights
- guide, driver and hotel contacts saved in notes, not just in a chat thread
- local currency in cash — cards aren't accepted everywhere outside major towns
- a power bank — outlets on the road and in remote lodges aren't always reliable
The coast and islands: Nosy Be and Sainte-Marie run on their own rhythm
Nosy Be island in the northwest and Sainte-Marie in the east are popular beach destinations usually reached by plane rather than by road. In resort towns like Hell-Ville signal is generally stable, but on remote beaches and the smaller islets nearby it can drop off just as it does inland.
For beach time on the islands, you don't need much data — maps, messengers and photos — but it's worth checking the ferry or flight schedule back to the mainland while the town's signal is still solid.