Lake Baikal, the Deepest Lake in Siberia
Lake Baikal lies in the cold southern part of Siberia, in Russia. It is long and curved, a little like a crescent moon. Its most famous fact is its depth. Baikal is the deepest lake on Earth, and it holds more fresh water than any other lake.
The water is very clear. On a calm day, a diver can see far down into it. Scientists think the lake is also extremely old, and many of the plants and animals in it live nowhere else. One example is the nerpa, a small seal that lives in fresh water instead of the sea.
Winter changes the lake completely. The weather is so cold that the surface freezes into a thick sheet of ice. The ice is often clear, and cracks run across it like glass. Local people drive and walk on it as if it were a road, once it is firm enough. Fishing and travel go on all season.
In spring, the ice slowly melts and breaks apart. The lake then wakes up again, and boats return to the water.
Baikal is a reminder that a single lake can be as important to a region as a mountain or a river.