If you don’t already know, there is a guy on YouTube known as DudeLikeHELLA (real name, Cory Williams) who documents his life in lovely Alaska and uploads them for the world to see.
Recently he uploaded a video of him skipping rocks on a frozen lake that was titled Coolest Sound Ever. The reason it was called that was because once he skipped rocks on the frozen lake, a very cool and alien-like sound can be heard.
Not expecting to hear that ‘out of this world sound’ Williams loses his mind and tries it again. Check out the awesome video for yourself:
[Source]