In case you were worried, no, the sound is not coming out of his mouth.

Well, "discovered" may not be the right word, but America just celebrated Columbus Day, so we clearly don't give a flying hoot about what "discovered" means. This is Cory Williams of Anchorage, Alaska, and he is an excited man. If you have access to a body of water and you live in a region that experiences winter, I highly recommend trying skipping stones across the ice. If you watch this with your eyes closed, you might think the sound was molten metal or molten glass being poured into cold water, or perhaps a high-tension wire being knocked around. It's not. It's just a pond. Except for the sound at 4:37. That is a much different sound entirely.

Sources: | redditor MaMaJillianLeanna