This lake is one of the strangest waters in Africa. An unusual set of properties makes it an intriguing subject for scientists.
The toxic gas in Kivu death lake in Rwanda threatens the lives of two million people, but can also generate electricity for the whole country for hundreds of years.
These lakes are famous for their quiet space and beautiful scenery, but they also contain unpredictable dangers.
Water is an indispensable part of life. However, many waters are so dangerous that it is best to stay away.