The deepest point in Blue John Cavern, located in Derbyshire, England, is approximately 150 meters (about 490 feet) below the surface. This limestone cave is renowned for its stunning mineral formations, particularly the blue and yellow banded stone known as Blue John. The cavern features a series of impressive chambers and passages, making it a popular destination for visitors.
It is 6,000 feet deep at the deepest point.
The Central Trough is the deepest point in the Red Sea with a depth of 2,211 metres (7,254 feet or 1.37 miles). It runs straight down the centre of the Red Sea hence the 'Central Trough'.
After you have completed enough of the barbarian training requirement, jump into the whirlpool and you will end up in a safe area with stairs. Go down the stairs and you will enter the dangerous ancient cavern.
60m deep
true!
stalactite
Deepest, lowest
The one that Jack went down in.
The point in the ocean that is the deepest is the Marianas trench. It is deeper than Mount Everest turned upside down. It is miles deep.The Pacific Ocean is the deepest ocean and sea at (35,837 ft) (10,924 meters)
I am not at all sure what you mean by a "cavern zone", but you can only enter a cavern by an open, humanly-passable entrance on the land surface. +++ Ah! One mark to you! :-) I have re-visited my answer above because I have just looked down the page to see there's something called a "cavern zone" in some game or tother!
Oceanic crust
It's Tartarus, the deepest most horrible pit in the world. It has a Cave leading into an endlessly dark cavern, getting darker and darker until you are at the edge of a bottomless pit. You can't see were the cliff cuts off and were it steepens down into the abyss, but can tell the void is there, like the grand canyon at night.