Jotaro and the others try to escape from the submarine, as it is now sinking from an attack from the enemy Stand, High Priestess. As the group puts on scuba gear and heads out into the water, the enemy Stand attacks again. The enemy keeps changing shape, but somehow, Jotaro and crew manage to escape. They find two underwater tunnels and realize that they're close to the surface and start to relax when...
that means the sea bed is 
mostly mineral, too?
هذا يعني أن قاع البحر يعتبر من المعادن أليس كذلك؟
das bedeutet, dass der
Meeresgrund auch daraus besteht?
isso significa que o leito do mar é,
em grande parte, também mineral?