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The Creepiest Places In The Ocean

Updated September 4, 2020 16.6k votes 3.0k voters 187.5k views12 items

List RulesVote up the undersea locales that creep you out the most.

Only about 10% of the seafloor has been explored, but even still, our limited research has shown us one thing for sure: there are some bone-chillingly creepy things in the oceans. From natural (but terrifying) formations and trenches to shipwrecks and weird creatures, there's some stuff lurking down there that should probably just be left alone.

The creepiest places under the sea are hands-down more unsettling than any creepy place on land because we simply don't know nearly as much about the ocean as we do about the surface. The deepest part of the ocean, the Challenger Deep in the Mariana Trench, is seven miles below the surface - a mile and a half deeper than Mount Everest is tall. Who knows what you might find down there? Seriously, there could be real-life sea monsters.

Diving into these weird under the sea places would feel like entering a sci-fi world or even a horror movie. These places are where people come face to face with terror, perils, and even death. Even a glimpse of some of these creepy places in the ocean is enough to induce a sense of dread. Let’s dive in anyway, shall we?

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    The Mariana Trench Is the Deepest Point on Earth and We Have No Idea What All Is Down There

    The Mariana Trench Is the Deepest Point on Earth and We Have No Idea What All Is Down There
    Photo: Unknown / Wikimedia Commons / Public Domain

    The Mariana Trench contains the deepest known point on our planet. Only three people have been to the bottom of Mariana Trench’s deepest point, the Challenger Deep, which is 6.83 miles (10.99 kilometers) deep.

    It's pitch black down there, the water pressure is enough to kill you, and oh yeah, there are hydrothermal vents that blow out water hot enough to melt the flesh from your body, so it's kind of hard to blame explorers for being trepidatious.

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    The Corryvreckan Maelstrom Is a Permanent, Violent Whirlpool

    The Corryvreckan Maelstrom Is a Permanent, Violent Whirlpool
    Photo: Walter Baxter / Wikimedia Commons / CC-BY-SA-2.0

    While most whirlpools are harmless or temporary, the Corryvreckan Maelstrom in Scotland is in a league of its own. Not only is it a permanent vortex, it’s also remarkably powerful, mighty enough to be dubbed the third strongest in the world. The hazard presented by this phenomenon depends on mother nature’s mood.

    With a strong wind and current, the maelstrom can produce standing waves of 15 feet high. You don’t want to be around when it happens.

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    The Terrifyingly Deep Great Blue Hole

    The Terrifyingly Deep Great Blue Hole
    Photo: U.S. Geological Survey (USGS) / Wikimedia Commons / Public Domain

    You don’t even have to dive into this dark blue circle off the coast of Belize City to experience its creepiness. The color of this natural phenomenon comes from its depth: at 407 feet (124 m) deep, the hole is a one-of-a-kind diving attraction with unique organisms, including some species of sharks like nurse sharks and bull sharks.

    Scientists even think the hole has something to tell us about the disappearance of the Maya civilization.

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    The Remains of a Devastating WWII Battle Lie at the Bottom of the Chuuk Lagoon

    The Chuuk Lagoon, Japan’s main military base in the South Pacific during WWII, is beautiful outside but so creepy inside. Under the water there are hundreds of aircraft and warships that were sunk in attacks, drowning with them hundreds more ill-fated soldiers.

    The frightening sight of ruined ships and planes along with human skulls greets those who have the nerve to visit. 

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