There's a lake that's a million years younger than its surrounding landscape - Apparently.
Lake Vostok, located in Antarctica, is a subglacial lake that lies beneath the East Antarctic Ice Sheet. It's estimated to be about 5 million years old, while the surrounding ice sheet is around 40 million years old. This discrepancy is due to the fact that the lake has been isolated from the outside world for so long, allowing it to maintain a unique ecosystem. The lake was first discovered in the 1970s and has since been studied extensively by Russian and American scientists.