The territory is made up of three main volcanic tropical islands along with a number of tiny islets, and is split into two island groups that lie about  apart, namely Wallis Islands (or Uvea Islands) in the northeast and Hoorn Islands (or Futuna Islands) in the southwest, including Futuna Island proper and the mostly uninhabited Alofi Island.
The territory comprises three primary volcanic islands, along with several smaller islets, and is separated into two island clusters located roughly apart, namely Wallis Islands (or Uvea Islands) in the northeast and Hoorn Islands (or Futuna Islands) in the southwest, including Alofi Island.