Plunge into Artic's frigid waters as diver Ant Williams attempts to shatter the world record for swimming the longest distance under ice - on just one breath. Plunge into Artic's frigid waters as diver Ant Williams attempts to shatter the world record for swimming the longest distance under ice - on just one breath. Plunge into Artic's frigid waters as diver Ant Williams attempts to shatter the world record for swimming the longest distance under ice - on just one breath. Plunge into Artic's frigid waters as diver Ant Williams attempts to shatter the world record for swimming the longest distance under ice - on just one breath.