Jotaro and the others obtain a submarine as a new means of travel. Through the Red Sea, they try to head toward Egypt where DIO awaits. Using the sonar to detect any threats on the outside, the submarine quietly dives in. They however realize that if they're attacked underwater, there is nowhere to escape, so they are on their guard. Finally, when they are about to surface, a coffee mug that was in the cabin transforms and cuts off Joseph's artificial hand.
How simple... So it cut a hole and came in?
هذا سهل...فتحت فوهة ودخلت منها
Wie einfach …
Also ist er durch das Loch hier rein?
Qué simple.
Qué simple.
Il a percé un trou
pour entrer, tout simplement.
È così semplice... ha fatto un buco ed è entrata?
A maneira mais óbvia... 
Abriu um buraco e entrou.