How deep the ocean really is.

The ocean is considerably deep, surpassing our common understanding. If all the land from every continent and island were removed and placed in the ocean's deepest points, the entire earth would be submerged in a two-mile deep ocean. Three-quarters of our planet is already covered in water, and it extends far beyond two miles. To provide a sense of scale, an average human is represented by a dot, while an elephant is slightly larger, and the largest ship ever built, the Knock Nevis, is even larger.

Descending into the ocean, the first milestone is at 40 meters, the maximum depth allowed for recreational scuba diving. The wreck of the Lusitania was discovered at 93 meters, which is interesting because the ship is longer than the water in which it sank. At 100 meters, diving can become fatal due to decompression sickness. However, Herbert Nitsch accomplished the free diving world record at a depth of 214 meters. Ahmed Gabr holds the scuba diving world record at 332 meters, which is deeper than the height of the Empire State Building if it were submerged.

At 500 meters, we reach the maximum dive depth of Blue Whales, the largest creatures on the planet, and the limit of the US Seawolf Class Nuclear Submarine. Emperor Penguins can dive to 535 meters, where the water pressure is equivalent to a polar bear standing on a quarter. At 830 meters, the height of the Burj Khalifa in Dubai, the tallest building in the world, is reached.

At 1,000 meters, we enter the scary zone, where light from the surface cannot reach, and the water pressure is equivalent to standing on the surface of Venus. The Giant Squid resides at this depth. The Leatherback Sea Turtle can dive to 1,280 meters, and the deepest part of the Grand Canyon is at 1,828 meters.

At 2,000 meters, we encounter terrifying sea creatures such as the Black Dragonfish, which emits no light, making it visible only with a flashlight. Sperm Whales and the Colossal Squid can dive to 2,250 meters, where the water pressure is equivalent to an elephant balancing on a postage stamp.

The RMS Titanic rests at 3,800 meters, and the Abyssal Zone begins at 4,000 meters, where water pressure is 11,000 pounds per square inch. The battleship Bismarck is located at 4,791 meters, and the Hadal Zone begins at 6,000 meters, where the water pressure is equivalent to carrying the weight of 50 Boeing 747 jumbo jets.

The DSV Alvin can dive to 6,500 meters, and the height of Mt. Everest is reached at 8,848 meters, if it were upside down and submerged. The deepest point reached by humans was 10,916 meters in 1960, and the Challenger Deep, the bottom of the known ocean, is at 10,994 meters. However, it is believed that there are even deeper parts of the ocean yet to be discovered, as only 5% of the ocean's floor has been accurately mapped.



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