Describe the narrow escape of the Nautilus after having reached the South Pole. 20,000 leagues under the sea.

The Nautilus is the name of a Ship. It reached the South Pole and got imprisoned in a genuine tunnel of ice. The tunnel of ice was about twenty meters wide and contained large volume of quiet water.

The ship narrowly escaped by easily exiting the area and by going either ahead or behind and then sinking a few hundred meters deeper which resulted in following through an open passageway beneath the Ice Bank.