Between Zimbabwe and Zambia lies one of the most impressive tourist attractions in the world, and it is in danger from one of the worst droughts of the century.
The roar of the water falling at full speed into that huge crevice made them one of the seven natural wonders of the world. Hence its local nickname: Mosi-oa Tunya ("The smoke that thunders").
The Victoria Falls are drying up, its imposing waterfall of more than 100 meters high, no longer exists.
The phenomenon, which already threatens farmers' livelihoods, could also damage tourism industries in Zimbabwe and Zambia.
While world leaders cannot agree to stop catastrophic warming caused by man-made greenhouse gas emissions, southern Africa is already suffering some of its worst effects, with taps without a drop of water and some 45 million people in need of food aid due to poor harvests.
Zimbabwe and Zambia are also experiencing power outages as they rely heavily on hydroelectric power from the Kariba Dam power plants, located on the Zambezi River upstream of the waterfalls.
Wide stretches of this kilometer-long natural wonder are nothing more than dry stone. The water flow is reduced elsewhere.
Along with Niagara Falls and Iguazu Falls, they are, or rather Victoria Falls, were one of the most impressive in the world.
Now that "Thundering Smoke" has fallen silent and many look to this corner of Africa in fear that it will become a devastating new example of the effects of climate change.
With information from: