France's secret Indian Ocean island — the world's largest lagoon, sea turtles, and Swahili culture
Mayotte is a French overseas department in the Mozambique Channel, between Madagascar and the Comoros, and it contains what is widely considered the world's largest lagoon — 1,100km² of turquoise water enclosed by a double barrier reef, 200km in circumference. The island is home to 200kg Green and Hawksbill sea turtles that nest on its beaches, humpback whales that shelter in the lagoon from July to November, and a Mahorais culture that blends Swahili, Malagasy, and French traditions. It's one of the world's least-visited French territories and one of its most biodiverse.
Mayotte has been inhabited since the 7th century, becoming an important Swahili trade port. Arab sultans ruled the island for centuries before France acquired it in 1841. When the Comoros archipelago voted for independence from France in 1975, Mayotte voted to remain French — a decision it has reaffirmed in multiple referendums. It became a French overseas department (the 101st département) in 2011, bringing full EU membership. The island's complex legal status — Mahorais citizens are French but live in an area where traditional Sharia family law coexisted with French civil law until recent r…