I don't know about you, but ever since I was introduced to the ocean I was always told - if you see a shark you either play dead or get the fuck outta there. Yes, I might have only been paddling in Cornwall - but still.
Mark Mohler and Kimberly Jeffries must have missed the memo because when they happened to spot the biggest great white shark in the world they didn't follow the usual protocol, nope they jumped into the water to do a photo-shoot with the beast.
The pair of divers saw the shark - nicknamed 'Deep Blue' - on Sunday last week and they were desperate to take a closer look as the creature fed on a dead sperm whale, around nine miles from the coast off the Hawaiian island of Oahu, reports the MailOnline.
Taking to Facebook, Mohler wrote: "Deep Blue, possibly the biggest White Shark identified, coming in at nearly seven meters, was last spotted in Mexico."
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To be absolutely sure, Mohler and Jeffries confirmed the identity with the white shark authority.
According to the Mirror, Deep Blue is thought to be around 50 years old and measures slightly less than 20ft long.
Experts believe she may be the largest ever seen and George Burgess, director emeritus of the International Shark Attack File at Florida Museum of Natural History, told ABC News: "It's a very big white shark, obviously.
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"One of the largest that has ever been seen in the water. I'm not sure it's 20ft, I suspect it's a little less than that. Perhaps 18, 19 feet, if I were to guess. She's a big girl."
Deep Blue was spotted in Mexico around four years ago and was filmed by shark conservationist Mauricio Hoyos Padilla, the footage was then broadcast as part of Nat Geo Wild's 'Shark Week' programming.
Deep Blue was pregnant at the time as well, so she looks even bigger than she actually would do normally.
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In the video, which was shot under the seas of Mexico's Baha California peninsula, near to Guadalupe Island, shows the humongous apex predator swimming around a shark cage.
The diver in the cage pushes the shark away - which is a pretty ballsy move - before she loses interest and swims off.
Great White sharks can live for up to 70 years, although this varies between male and female sharks. Deep Blue is thought to be about 50 years old, which could be why she is so vast.
Featured Image Credit: Kayleigh Burns