Andrew Ryzebol is a professional ice diver from Canada who tells PEOPLE ... in such extreme wintery conditions without an oxygen tank, including the shocking amount of time he's able to hold ...

"I had a lot of fun doing it," says professional ice diver Ryzebol ... is a crucial skill needed for free diving since an oxygen tank isn't used, like in scuba diving. "We take a big breath ...

Ice diver Andrew Ryzebol float beneath a bed ... is a crucial skill needed for free diving since an oxygen tank isn't used, like in scuba diving. "We take a big breath and then we go down.