A tourist in Bali has creeped out the internet with her video of a village that has been invaded by spiders, with walls of arachnids smothering buildings, powerlines and trees.

An army of hundreds of spiders can be seen hanging out in their webs and looking like “the world’s best Halloween decorations”.

The creatures are stretched out between the wires of powerlines, they blanket the trees and branches and they have taken over buildings.

“If you are looking for a reason to not come to Bali, this is it,” says Grace Kelly, 33, in the clip that was been viewed more than 20 million times on TikTok.

“It’s literally the worst thing I have seen in my entire life. I’m not exaggerating.”

Kelly told news.com.au she came across the spine-tingling phenomenon when travelling between Ubud and Mount Batur, near the border of Kintamani.

“I glimpsed at it as we drove past and gasped and asked the driver to turn around because I couldn’t believe what I’d seen,” said the British traveller.

“I’m absolutely terrified of spiders but I think the awe took over and I knew I wanted to capture it as it was so out of this world. Also, they were very still which made me less uneasy. I didn’t get too close.”

She told news.com.au the webs spanned about 20 metres along the roadside in front of derelict buildings, through trees and power lines.

“It was so dense I think it went back around five metres in some places,” she said.

“All I could think about was how absolutely no amount of money in the world could get me to run through that.”

Her video has horrified internet users and gone viral in just a day.

“Welcome to hell on earth,” wrote Kelly on the post, with a caption warning that “this is the worst thing you’ll see in Bali. Hands down.”

However she adds: “Don’t let this actually put you off Bali. I think this is come kind of natural phenomenon and not very common and was not in a popular location.”

Kelly said it was a remote place where few tourists were likely to venture.

The post drew more than 45,000 comments, especially from the arachnophobic who indicated that Bali was no longer on their bucket list.

“Yay as someone who has arachnophobia Bali and Australia will not see me,” said one TikTok user, whose comment received more than 87,000 likes.

Another wrote: “The way I screamed throughout this entire video and got chills. Scratched Bali off my bucket list.”

However some expatriates living in Bali assured the public that a spider invasion like that was not common and many people would never see such a sight.

“I’ve been living in Bali for seven years. These spiders are only located in the north of Bali called Bangli region or Kintamani near Mount Batur,” said one person.

Another TikTok user was non-plussed: “If I was in Bali I’d be on a beach with a drink in my hand. Not spider sightseeing.”

A similar spider congregation was filmed two years ago and posted to YouTube showing thousands of spiders draped across powerlines and rooftops in a village in Kintamani.

Locals in that clip go about their daily lives, riding scooters through the streets, as though there is nothing unusual happening in the village.

Social media users have surmised the spiders are golden orb weavers which are also found in Australia but are not harmful to humans.