Just how deep does the ocean go? Way further than you think. In fact, Oceanography informs us that at the extreme depths of the ocean on Planet Earth there is no light.
The deep sea region is the lowest layer in the ocean. It exists below the Thermocline and above the seabed, at a depth of 1,800 m or more. Little or no light penetrates this part of the ocean.
Furthermore, most of the organisms that live there rely for subsistence on falling organic matter produced in the Photic Zone.
For this reason, scientists once assumed that life would be sparse in the deep ocean. But virtually every probe has revealed that, on the contrary, life is abundant in the deep ocean. Glory be to Allah the Almighty.
{Or [the state of a disbeliever] is like the darkness in a vast deep sea, overwhelmed with waves topped by waves, topped by dark clouds, (layers of) darkness upon darkness: if a man stretches out his hand, he can hardly see it! And he for whom Allah has not appointed light for him there is no light.} [Surat An-Nur 24:40].
This amazing video puts the actual distance of Earth’s ocean into perspective. It shows the vast distance between the waves we see and the mysterious point we call Challenger Deep. Enjoy.