Jules Verne

“ Maneuvers that aren't feasible for an ordinary ship are easy for the Nautilus. If a continent emerges at the pole, we'll stop at that continent. But on the other hand, if open sea washes the pole, we'll go to that very place!"
"Right," I said, carried away by the captain's logic. "Even though the surface of the sea has solidified into ice, its lower strata are still open, thanks to that divine justice that puts the maximum density of salt water one degree above its freezing point. And if I'm not mistaken, the submerged part of this Ice Bank is in a four–to–one ratio to its emerging part." ”

“ You've made it to the Ice Bank, which is already far enough, but you won't get any farther, neither your Captain Nemo or his Nautilus. And whether he wants to or not, we'll head north again, in other words, to the land of sensible people."
I had to agree that Ned Land was right, and until ships are built to navigate over tracts of ice, they'll have to stop at the Ice Bank.
Indeed, despite its efforts, despite the powerful methods it used to split this ice, the Nautilus was reduced to immobility. Ordinarily, when someone can't go any farther, he still has the option of returning in his tracks. ”

“ Captain Nemo went on, "lies in our staying submerged for several days without renewing our air supply."
"That's all?" I answered. "The Nautilus has huge air tanks; we'll fill them up and they'll supply all the oxygen we need."
"Good thinking, Professor Aronnax," the captain replied with a smile. "But since I don't want to be accused of foolhardiness, I'm giving you all my objections in advance."
"You have more?"
"Just one. If a sea exists at the South Pole, it's possible this sea may be completely frozen over, so we couldn't come up to the surface!" ”

“ Even in a temperature of merely –5° centigrade, every outside part of the Nautilus was covered with ice. A ship's rigging would have been unusable, because all its tackle would have jammed in the grooves of the pulleys. Only a craft without sails, driven by an electric motor that needed no coal, could face such high latitudes. ”

“ Thanks to certain heavy mists, we couldn't see from one end of the platform to the other. The wind shifted abruptly to every point on the compass. The snow was piling up in such packed layers, it had to be chipped loose with blows from picks. ”

“ The temperature was fairly low. Exposed to the outside air, the thermometer marked –2° to –3° centigrade. But we were warmly dressed in furs, for which seals and aquatic bears had paid the price. Evenly heated by all its electric equipment, the Nautilus's interior defied the most intense cold. Moreover, to find a bearable temperature, the ship had only to sink just a few meters beneath the waves.
Two months earlier we would have enjoyed perpetual daylight in this latitude ”

“ Going along the 55th meridian, the Nautilus cut the Antarctic Circle on March 16 near eight o'clock in the morning. Ice completely surrounded us and closed off the horizon. Nevertheless, Captain Nemo went from passageway to passageway, always proceeding south. ”