The 'stern', just like any other ship.
The term "Stern" is the Navy term for the aft (rear) section of any ship or submarine, generally referring to the rearmost portion of the vessel.
Go back to Slateport town. Inside the ferry building, you will find captain stern and the submarine being robbed by Team Aqua.
A hound's tail is called a stern.
The submarine is manned by the crew, and crew members are called submariners.
The 'helmsman' steers a submarine.
The front is called the bow, and the back is called the stern.
The rear of the ship is called the "stern". The front is called the "bow". The rear direction in a ship is "aft". (head "aft" to get to the "stern").
In Slateport city harbour you will see capt. stern being interviewed with a large crowd talk to capt. stern and you will go into the harbour thing and then go to their hideout in lilycove city.
Fulton designed a submarine called Nautilus.
It is called the Stern.
Submarine mountains that were once active volcanoes are called seamounts.
The stern is the back or rear of a boat. The bow is the front.