Sydney boaters were left scratching their heads Monday after witnessing a line formation of four UFOs hovering above a city marina.

Australia has always been a hotbed of paranormal activity, especially in the underpopulated desert regions, but there's been an increasing number of strange phenomena occurring in the urban and suburban areas as of late.

This worldwide uptick in the unexplained craft sightings is a worrisome trend. Why are all these sightings happening? Are people starting to freak out about the end of the Mayan calendar in December, and peering to the heavens for answers?

One of the boaters, Ivan Mikkelsen of Sylvania Waters, snapped a still photo of the UFOs, but apparently no one around had a videocam handy.

To read more and view the video, click here.