The crisp captures show two UFOs apparently photographed by Eric Thomason above Maslin Beach in Adelaide, South Australia, Australia, on March 10 1993.
According to Mr Thomason he was looking out to sea, when he saw the UFO rise from the waves and fly towards him.
Later, a second, smaller UFO appeared and came to join the first one.
When compared to other alleged UFO images, they were extraordinarily clear.
Mr Thomason told UFO Sweden: "It was then that I saw a development at first glance on the water, and something resembling the tower on a nuclear submarine rose."