A beach in the Greek town of Aitoliko has been blanketed with spider webs stretching more than 300 yards.
Biologist Fotis Pergantis, president of the region's Messolonghi National Lagoon Park, says the warm weather has led to an increase in the presence of gnats, on which the spiders feed.
A giant web spanning 1,000ft has mysteriously appeared overnight in Aitoliko, a city in western Greece.
Footage taken by local Giannis Giannakopoulos shows the web completely cloaking trees, bushes and shrubberies near a lagoon. They are commonly called stretch spiders due to their elongated body form.
With the growth of the gnat population, the spiders also thrive and multiply.
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She said a similar phenomenon was recorded in 2003 and that all it takes is the ideal fall weather conditions for the spiders to thrive.
"When these temperatures last long enough, we can see a second, third and fourth generation of the gnats and end up with large amounts of their populations", he said, adding that the spiders will multiply en masse if there are enough gnats. Just when you thought you these guys could not get more invasive, they invade a whole Greek town... for a sex party.
A spider population boom happens about every three to five years near Aitoliko.
"The spiders will have their party and will soon die". When that happens, the spider population will decrease as well.
Speaking to Greek news websites, molecular biologist Maria Chatzaki said that the spiders are not unsafe to humans and she not be feared.