Nukuhifala is an islet of Wallis and Futuna. It is located off the east coast of Mata-Utu, Wallis Island. The only settlement is a tiny hamlet on the southwest coast. It lies on the outer coral reef. It has a population of four.
Wikipedia https://en.wikipedia.org/wiki/Nukuhifala
Coordinates -13°17'19.403" N -176°7'36.301" E