Black and white lantern Slide of Coach crossing Limpopo - British South Africa. Part of Box 288, British South Africa. Boswell Collection. Slide number 16 Coach crossing Limpopo - The Limpopo River rises in central southern Africa, and flows generally eastwards to the Indian Ocean. Limpopo means waterfalls in Zulu, Xhosa, Siswati and Ndebele. The Limpopo is the second largest river in Africa that drains to the Indian Ocean, after the Zambezi River.