A beachgoer at Skegness photographed a shark on the shore after spotting the sea creature at the popular beach.
Stephen Gilson shared a photo of the shark and said: "Deffo not going in the water now".
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The common smooth-hound shark, which is also known as smooth dogfish, aggregates in large numbers like a pack of dogs.
A number of the sharks were seen at beach in Lincolnshire, with terrified holidaymakers refusing to go in the water, the Grimsby Telegraph reports.
Marilyn Fenton wrote on Facebook: "We saw some I'm not even having a paddle in the sea now."
According to the Lincolnshire Echo, residents in Skegness said they have seen the sharks in the area, usually from the summer until September.
One man told the newspaper that there were hundreds off the coast.
It comes after more than 30 basking sharks were filmed swimming off the coast of Scotland this week in an amazing video captured by drone.
Basking Shark Scotland, which captured the footage, shared the incredible video on Facebook and wrote: "BOOM!!!!!! We hit the mega day yesterday, probably over 50 #baskingsharks in the end and around 30 in the first big aggregation. Luke flew the drone in glassy conditions and check out this insane footage!"
Since the footage was shared on Friday, it has been viewed over 55,000 times.