Attraction in Mayotte
Dziani Dzaha is a vivid green crater lake on Petite-Terre, its colour shifting with the light and the algae below. A loop trail around the rim offers views over the lake on one side and the open Indian Ocean on the other.

Travel Guide
Mayotte is an overseas department of France, though it sits outside the standard Schengen area and applies its own entry conditions. Entry requirements vary by passport, so check your specific requirements on the Mayotte page at Yoogo before you book.
Mayotte uses the euro (EUR), the same as mainland France. Cards are accepted in Mamoudzou and the larger shops, but carry cash for markets, taxis, and the smaller villages where card machines are scarce.
Mayotte sees more petty and opportunistic crime than mainland France, so keep valuables out of sight and avoid quiet areas after dark. Most visits pass without trouble when you take sensible precautions, particularly in and around Mamoudzou.
A frequent barge links Grande-Terre and Petite-Terre, where the airport sits, and the crossing takes only a few minutes. Hiring a car is the easiest way to explore Grande-Terre, while shared taxis cover the main routes.
The dry, cooler season from May to October is the most pleasant for hiking, beaches, and lagoon trips. Humpback whales pass through the lagoon between roughly July and September, a highlight for many visitors.
French is the official language, used in administration and schools. Most residents speak Shimaore, a Swahili-related language, or Kibushi of Malagasy origin, and a friendly French greeting is always welcome.
No vaccinations are required for entry, but routine jabs should be up to date and hepatitis cover is often advised. Dengue and chikungunya can circulate, so use insect repellent and speak to a travel clinic before you go.
Tipping is not expected, as service is generally included in line with French practice. Rounding up the bill or leaving small change for good service is appreciated but entirely optional.
Mobile coverage is good across the populated parts of Grande-Terre and Petite-Terre. A travel eSIM from Airalo lets you get online as soon as you land without hunting for a local SIM card.
Mayotte has a strong Muslim culture, so dress modestly away from the beach and ask before photographing people, especially women. Covering your shoulders and knees when visiting villages is a respected courtesy.
Visa Check
Visa rules for Dziani Dzaha follow the entry rules for Mayotte. Use the common corridor checks below, or look up your own passport before you travel.