At 1,324 metres (4,344 ft), Mount Tomanivi is the highest mountain in Fiji.

The main river systems, the Rewa, Navua, Sigatoka, and Ba, all have their headwaters in the central mountain area.

[2] Tomanivi contains a significant proportion of the highest-altitude montane forest in Fiji.

It is seen as the best hope for the critically endangered red-throated lorikeet surviving anywhere in the world.

It also supports populations of endangered long-legged warblers, and the vulnerable shy ground-dove and pink-billed parrotfinch.