Meaning
This flag stands for Mayotte, a French overseas department in the Mozambique Channel, northwest of Madagascar, ringed by a large coral lagoon.
It shows up in lagoon diving and snorkelling posts, whale and dolphin watching, sea turtle beaches and family news, with 🐢 or 🐬. Réunion, another French island in the region, has its own flag emoji. “Sea turtles on the beach at dusk 🇾🇹🐢”