The ship quickly sank to the bottom of 'the ocean'.
We've sailed across hundreds of miles of 'ocean'.
There's a storm moving in from 'the ocean'.
(..) beyond . - Temperature's rising quickly. - So, what do we do? I say that we follow Max's plan. "My analysis of the original Verne text... ...leads me to believe that across the ocean due north of my current position... ...is a geyser-like river which could be used to return to the surface." (..)2008 Journey to the Center of the Earth