Most visits to Mayotte are trouble-free.
Although there’s no recent history of terrorism in Mayotte, attacks can’t be ruled out. See Terrorism
The cyclone season in Mayotte normally runs from December to April. See Natural disasters
Consular support is not available from the British government in Mayotte. However, the British Embassy in Paris, France can provide consular support to British nationals.
Take out comprehensive travel and medical insurance before you travel.