Terrifying footage shows the moment a UFO appears to float over a valley in Hawaii, hovering abover water before dramatically disappearing.

YouTube channel The Unidentified, shares all manner of intriuguing and unexplained encounters, and accounts from people who claim they’ve seen aliens, or experienced other paranormal activity.

The clip features in a documentary posted on the channel called UFOs Over Hawaii, which includes handheld camera footage taken by a local showing a mysterious object in the sky.

According to the narrator, the rotating craft emerges from a "pyramid-shaped portion of the valley

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