The river flows on the territory of Kalevalsky region. The river originates near the Rysto Island, connecting it with the Koko Island. Through the Ridalakshi Lake the Voinitsa flows into the Verhnee Kuito. The river has some rapids: Koko-rapid, Tuhna, Taival, Voinitsky.
The Voinitsa river gave name to settlement which is situated on the river.
