The Numa Numa Trail is a trail on Bougainville in Papua New Guinea that runs from Numa Numa near Wakunai, Teperoi and Casuarina Island, a large coconut plantation[1] on the east coast, where it also gave its name to Numa Numa Harbour,[2] over the central mountains of Bougainville to Torokina on the western coast.
^Benis M. Frank: A Brief History of the 3rd Marines, Marine Corps Historical Reference Series No 35, Historical Branch, U.S. Marine Corps, Washington DC, repr. 1962, pp. 9-10 (online version)