The mystery of UFO phenomena has tickled human imagination for years, especially in the case of crop circles found in agricultural fields.
Some claim these strange shapes come from unexplainable natural occurrences, while others link them with an extraterrestrial presence. They exist in Croatia as well, but in a quite unique form.
During last year’s routine underwater mapping, 28 perfectly round shapes were discovered in the underwater vicinity of Dugi Otok Island.
Each of them are 50 meters in length, and the circles are 300 meters away from each other.
The locality is often visited by Croatian scuba divers, but until last year, nobody noticed the unique pattern.
There was a suspicion that the circles were made by illegal fisherman, who use dynamite in order to kill their prey and collect it upon emerging on the surface.
However, experts discovered that the measurements do not match. The circles are too perfect to be caused by any kind of explosion.
Another possible explanation suggested is that the circles were made by geophysical scientists, who have recently researched the oil potential of Adriatic Sea near Dugi Otok. However, this idea was also refuted.
Many locals have reported seeing strange lights in the sky along the coast near the circles, and have heard weird noises, some are convinced that a secret alien base is responsible for the phenomena, some refuse to go anywhere near the area, even the fish stay away from the circles one local said, its a dead zone.
The circles are scheduled for more complex analysis in the coming months, but for the time being, it seems that humans are not the only intelligent life enjoying the beauty of Croatian coast.