Lake Baikal, located in Siberia, Russia, is the world's oldest freshwater lake; although it formed approximately 25 million years ago, it continues to expand to this day.
It is also the deepest lake on Earth; at its bottom-reaching a depth of approximately 1,642 meters-a mysterious rift valley lies hidden beneath thick layers of sediment.
In terms of water volume, Lake Baikal is the largest freshwater lake; it holds approximately 20 percent of the Earth's freshwater reserves.
This lake stretches for approximately 636 kilometers; surrounded by mountains and magnificent landscapes, it is not only deep but also extremely vast.
More than 300 rivers and streams flow into Lake Baikal, but only a single river named Angara flows out of it towards the north.
Baikal is home to thousands of plant and animal species; among them, many including the famous Baikal seal, are found nowhere else.
Its water is extremely pure, and in some seasons, it remains clear and visible up to a depth of approximately 40 meters beneath the surface.
Due to its antiquity and isolation, scientists study Baikal to find out more about evolution, climate history, earthquakes, and ancient ecosystems.
In winter, the lake freezes into magnificent blue ice, forming massive cracks and bubbles, making it stand as one of the most spectacular natural landscapes on Earth.
Lake Baikal, recognized by UNESCO, is often referred to as the 'Galapagos of Russia' due to its rare wildlife and global significance.