www.overlandtraveltips.com - blogbr Kalambo Falls is a 772-foot (235 m) waterfall on the Kalambo River, on the border between Zambia and Tanzania. It is the second-highest single-drop waterfall in Africa, after Tugela Falls in South Africa. The falls are located in a remote area, and are only accessible by 4x4 vehicle or on foot. The hike to the falls takes about two hours, and is well worth the effort. The falls are a truly spectacular sight, and the views from the top are breathtaking.