Forget any mermaids that may have stood out in popular culture over the years. 

Mischief the Mermaid may be giving Ariel of "The Little Mermaid" and others a run for their money. Meet Emma Harper — an ocean mermaid instructor from Cornwall, in the United Kingdom.

Yes, she's called Mischief the Mermaid. 

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The 41-year-old mother of three told Fox News Digital that she started "mermaiding" years ago — after her father died — to try and heal at sea.

"When my skills of performance, creativity and free diving found a home together, it was fate," she said. 

Mermaid

Emma Harper, who spends most of her time in the ocean, can dive to depths of 65 feet while holding her breath for up to four minutes, she said. (Kennedy News/Rita Hencke )

She spends most of her time in the ocean, claiming she fills the water with "mermagic" by instructing others on how to be a mermaid. 

Harper said more and more people are interested in taking up the hobby. 

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"The wave of mermaid magic is happening — the mermaids are assembling," she said. 

Mermaid

Meet the real-life mermaid who swims in the open sea all year round.  (Kennedy News/@atlantic_surf_photography)

"These [sessions] help with ocean confidence and learning about the sea and how healing it is."

Harper said she has to stay physically fit in order to do her job successfully, even in cold-water temperatures throughout the year. 

"I need to be in the sea most days to keep acclimated to the U.K. water temperatures. I can’t have hot baths anymore," she said. 

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The mermaid also has some impressive breath-holding skills, saying she can hold her breath underwater for four minutes. 

"I can hold my breath for four minutes, but I want to do six minutes in the future," she said. 

Mermaid

Emma Harper, aka Mischief the Mermaid, spends "most of her time" in the open sea swimming, filling the water "with mermagic" by teaching others how to safely be a mermaid.  (Kennedy News/Katie Richards )

Harper can also dive very far down into the water, saying her first dive ever took her 49 feet below sea level.

She has since worked up to a 65-foot dive all while swimming with a 35 lb. silicone tail dubbed "Pollock."

As for what her three boys think about mom’s job? 

It’s encouraged them to be in the water as well, she said. 

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"One is starting his scuba training in [the] spring, one is a natural free diver and wants a tail, and one is so tall [that] he’s my security," she said. 

Harper also promotes ocean conservation and practices keeping her distance from marine life, she said.