The Lethe River, also known as Lete River, is a river that flows through Final Fantasy VI in the World of Balance. Its origin is in the Sabre Mountains, and the river flows through the mountains and has two discharges. One of them is near the port city of Nikeah and the other is near Gau's Father's House. The river also runs into a lake close to Narshe. It conveniently passes by the Returner Hideout, and the Returners built rafts in order to escape their hideout in an emergency.
