Futuna is an 80 km2 island with 3,225 people and max. elevation of 500 m in the Pacific Ocean, belonging to the French overseas collectivity of Wallis and Futuna. It is one of the Hoorn Islands or Îles Horne, nearby Alofi being the other. They are both a remnant of an old extinct volcano, now bordered with a fringing reef.
On the island is the place where Pierre Chanel was martyred in 1841, becoming Polynesia's only Catholic saint. Futuna takes its name from an endonym derived from the local futu, fish-poison tree.
Wikipedia https://uk.wikipedia.org/wiki/Футуна_(Волліс_і_Футуна)
Coordinates -14°17'30.709" N -178°7'42.459" E