evidence: The first of many upstream riverside lodges, Tongabezi, opened on the north bank in 1990 with very humble beginnings, but soon evolving into a lodge of the highest standards. In 1994 the lodge launched Sindabezi Island, an exclusive river island camp, as well as securing the exclusive right to operate tourist boat trips to Livingstone Island. The use of the Sindabezi island triggered a dispute over the line of the international border, with the island located less than 50 metres from the Zimbabwean bank. Zambian authorities claimed the border ran along the deepest channel, while Zimbabwean authorities claimed it ran down the mid-line of the river (and that Sindabezi Island therefore lay in Zimbabwean territory). [...] "In the area of Victoria Falls, Livingstone Island now belongs to Northern Rhodesia while Princess Victoria, Princess Christian, and Princess Marie Louise islands adhere to Southern Rhodesia. The boundary crosses the Falls to the west of Livingstone Island. Immediately above the Falls, Livingstone, Princess Helena Victoria, Princess Margaret, King George VI, Queen Elizabeth, Canary and Palm islands fall within Northern Rhodesia while Princess Victoria, Princess Christian, Princess Marie Louise, Princess Elizabeth and Kandahar islands are included within Southern Rhodesia. West of the islands, the boundary again joins the median line of the river." (US Department of State, International Boundary Study, 1964)