First of all it is important to mention that the ocean is very, very deep. Deeper than we can imagine. Today, we invite you to go on an adventure into the mysteries of the deep Seabed. Embark with us on this journey and dive to the bottom of the **Mariana Trench in the Pacific, the deepest studied place in the oceans, reaching a depth of 11,034 meters**, to see what is inside.

**40 meters.** This is the maximum depth allowed during a dive.

**93 meters**. A little further down was found the ocean liner RMS Lusitania, wrecked in 1915 off the coast of Ireland. An interesting fact: it was 240 meters long, which means that if it were placed vertically most of it would be above the water surface.

**100 meters.** Diving to a depth of 100 meters can be deadly, because at this depth decompression syndrome begins.

**214 meters.** Austrian Herbert Nitsch set a record by diving to this depth. His legs and head were bound with heavy objects to make the dive faster, but he did it without diving equipment.

**250 meters.** At this depth German submarines were moving during the period of the Second World War.

**332 meters.** Let’s go down a little more. Egyptian Ahmed Gabr set another diving record, but this time with special equipment.

**500 meters.** The maximum depth a blue whale can go. This is also the maximum depth a nuclear submarine can safely reach.

**535 meters.** The maximum depth an emperor penguin can reach.

**750 meters.** At this depth it is possible to find giant octopuses, which turn red when they are angry.

**828 meters.** The biggest building in the world, the Burj Khalifa (in Dubai), would reach this depth if it were plunged vertically.

## 1,000 Meters – How Deep Is the Ocean

**1,000 meters.** The light from the surface cannot reach this point, from here on there is only darkness. The pressure is the same as on the surface of Venus. This is where the giant squid region begins.

**1,280 meters.** The maximum depth that the leatherback turtle can reach. It can stay underwater for 85 minutes.

**2,250 meters.** At this depth the sperm whales hunt the giant squid. The scars on the sperm whales are a consequence of these battles.

**3,800 meters.** The Titanic is at this depth.

**4,000 meters.** A place in the abyssal zone, where there are terrifying animals such as the chiasmodontidae, the bathypterois, and the lophius.

**4,267 meters.** This is the bottom, that is, where the trench begins. Let’s go a little further down?

## 6,000 Meters

**6,000 meters.** We have arrived in the hadal zone, named after Hades, the world of the dead in mythology.

**6,500 meters.** This is the maximum depth that the DSV Alvin device can reach, the same device that helped to find the Titanic.

**6,762 meters.** Where the SS Rio Grande, sunk during World War II, is located. It is the wreck that is at the greatest depth in the world.

**8,848 meters.** Everest would reach that depth if it were plunged vertically.

**10,898 meters.** The depth reached by director James Cameron in 2012 was that. The ‘dive’ lasted 3 hours and he did a 3D recording to get footage for the movie Deepsea Challenge 3D. Cameron was the third person to risk reaching a depth of 11 km and the first to do it alone.

**10,916 meters.** The depth Jacques Piccard and Don Walsh reached in 1960. They stayed down there for 20 minutes; when the glass started shaking they had to go up. The total dive lasted 5 hours.

**10,994 meters.** We arrived at the Challenger abyss, considered the deepest of all the studied points of our Planet.

However, we know that the depth of the oceans has been less studied than the surface of Mars, that is, only 5%. Therefore, as many scientists claim, there are deeper places in the abyss and only nature knows what is hidden there.

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