Alexey Molchanov is considered the greatest free diver in the world and he just added to his reputation by breaking another record, this time beneath ice.

The Russian, whose mother was a legendary free diver who mysteriously disappeared on a free dive off Ibiza six years ago, swam down 262 feet beneath the ice of Siberia’s Lake Baikal, on a single breath.

You can read about the spectacular dive on the New York Times website.