A winter wonder 💙 Frozen bubbles suspended in the crystal-clear depths of Lake Baikal. Located in Siberia, Russia, Lake Baikal is the deepest and oldest freshwater lake on Earth. Lake Baikal is approximately 25 million years old, making it one of the most ancient lakes. It is the deepest lake globally, reaching a maximum depth of about 5,387 feet (1,642 meters). During winter, Lake Baikal freezes over, and the ice can reach a thickness of about 5 feet (1.5 meters). This frozen landscape creates