3. Lake Victoria
Fed mostly by rainwater, not rivers or streams, Victoria is the second-largest freshwater lake in the world. At its longest, it’s about 250 miles from shore to shore. But it averages only about 132 feet deep, and that fluctuates depending on climate and rainfall. Victoria was once thought to be the source of Africa's great Nile River. But the Nile, like Victoria, is fed mostly by rain.
Victoria — in Kenya, Uganda and Tanzania — boasts more than 3,000 islands, many of which are inhabited. The Ssese Islands, in the northwestern part of the lake, are an archipelago of 84 islands that include resorts and at least one golf course.