Best eSIM 2026 for Mayotte, Guadeloupe, Mauritius & Cape Verde: Indian Ocean & Atlantic Islands
Some of the world's most beautiful islands lie scattered across the Indian Ocean and Atlantic — Mayotte's pristine lagoon, Guadeloupe's twin-island paradise, Mauritius' luxury beaches, and Cape Verde's volcanic landscapes and Afro-Portuguese culture. Whether you're diving in a UNESCO-protected lagoon, hiking a volcano, or relaxing on a world-class beach — AloOui keeps you connected. Instant delivery, no SIM swap, no roaming fees.
Instant activation | Indian Ocean & Atlantic islands covered | No SIM swap | No roaming fees | Hotspot included | 24/7 support
Get Your Island eSIM — Activate Before You Fly
Instant delivery · No SIM swap · Hotspot included · No roaming fees
Shop Island eSIM Plans →Shop eSIM by destination — instant activation, no roaming:
Mayotte — France's Hidden Indian Ocean Gem
Mayotte is one of the world's best-kept secrets — a French overseas department in the Indian Ocean between Madagascar and the Mozambique coast, home to one of the largest lagoons on earth and some of the most pristine coral reefs in the world.
- Don't miss: Lagoon diving & snorkeling, whale watching (July–October), Mount Bénara hike, Dzaoudzi old capital.
- Best time: May–November.
- Budget: $80–$180/day.
Guadeloupe — The Butterfly Island
Guadeloupe is a French overseas region in the Eastern Caribbean — shaped like a butterfly, with two main islands offering classic Caribbean beaches and an active volcano rising 1,467m above lush rainforest.
- Don't miss: La Soufrière volcano hike, Chutes du Carbet waterfalls, Sainte-Anne beach, Îles des Saintes day trip.
- Best time: December–April.
- Budget: $80–$180/day.
Mauritius — The Pearl of the Indian Ocean
Mauritius is one of the world's great luxury island destinations — turquoise lagoons, powder-white beaches, and a multicultural culture blending African, Indian, Chinese, and French influences.
- Don't miss: Le Morne Brabant, Chamarel Seven Coloured Earths, Grand Baie, Île aux Cerfs, Port Louis market.
- Best time: May–December.
- Budget: $100–$400+/day.
Cape Verde — Africa's Atlantic Archipelago
Cape Verde is an archipelago of 10 volcanic islands off the west coast of Africa — a unique blend of African and Portuguese culture, with world-class windsurfing, dramatic volcanic landscapes, and the hauntingly beautiful morna music.
- Don't miss: Sal Island (windsurfing, diving), Boa Vista (sand dunes, sea turtles), Santo Antão (mountain hiking), Fogo (active volcano), São Vicente (Mindelo live music).
- Best time: November–June.
- Budget: $50–$130/day.
What Travelers Say About AloOui on the Islands
★★★★★
“Mauritius for our honeymoon — Le Morne, Grand Baie, and Île aux Cerfs. AloOui worked perfectly across the whole island. We shared the hotspot between us and navigated to hidden beaches. Absolutely perfect.”
— Sophie & Marc France | Mauritius honeymoon
★★★★★
“Cape Verde — Sal and Santo Antão. AloOui worked great in Sal and Santa Maria. Downloaded offline maps for the mountain hikes. Saved a fortune vs roaming from the UK.”
— James T. UK | Cape Verde island hopping
★★★★★
“Mayotte for diving — the lagoon is absolutely extraordinary. AloOui worked well in Mamoudzou. Used it to book dive trips via WhatsApp and navigate between beaches.”
— Emma T. France | Mayotte diving trip
Traveling through the UK or Europe?
Get a UK Local eSIM with a real UK number — unlimited calls, unlimited SMS, and data included.
See AloOui UK Local eSIM with UK Number →Why Travelers Choose AloOui for Island Trips:
✅ Instant activation — connected before you land
✅ No SIM swap — your home number stays active
✅ No roaming surprises — transparent prepaid pricing
✅ Hotspot included — share with your partner or travel companion
✅ No ID required — buy in 2 minutes, receive by email
✅ 24/7 support — via AloOui Help Center
Frequently Asked Questions
Does AloOui eSIM work in Mayotte?
Yes. Good 4G coverage in Mamoudzou and main towns. Download offline maps for remote areas before exploring.
Does AloOui eSIM work in Guadeloupe?
Yes. Excellent 4G coverage across Grande-Terre and Basse-Terre. More limited on the outer islands — download offline maps before island-hopping.
Does AloOui eSIM work in Mauritius?
Yes. Excellent 4G coverage across the main island. Rodrigues Island has more limited coverage.
Does AloOui eSIM work in Cape Verde?
Yes. Good 4G on Sal, Boa Vista, Santiago, and São Vicente. More limited on Santo Antão and Fogo — download offline maps before hiking.
Does AloOui eSIM include a hotspot?
Yes. All AloOui plans include hotspot/tethering at no extra cost.
What if I need help?
AloOui's support team is available 24/7 via the AloOui Help Center.
Instant delivery · No SIM swap · Hotspot included · Activate before departure
