Mount Tomanivi, previously named Mount Victoria and also known as Toamiivi, is an extinct volcano located in the northern highlands of Viti Levu. At , Mount Tomanivi is the highest mountain in Fiji. A trail leads to the summit of Tomanivi from the village of Navai. The main river systems, the Rewa, Navua, Sigatoka, and Ba, all have their headwaters in the central mountain area.