it depends if the water is really deep or not and how good in shape the submarine is
Ans 2 - The operational depth of submarines is secret -(or 'classified' as navies say it) However it's generally accepted that most modern submarines can dive to around 1,500 feet and possibly even more in the case of the very latest. Submarines evolve and improve continually as no country wants anothers warships to be better.
Classified.
200 ft
People need a submarine or dive bell to protect themselves from the immense pressure experienced at deep underwater levels. Submarines and dive bells are designed to withstand high pressures and provide a controlled environment for divers to safely explore these depths without risking injury or death.
The deepest submarine is built to go 10000 meters under water. This is so they can go to the bottom of the ocean floor.
surf around the massive island that is sootopolis city, then use dive at a deep place. there should be a cavern underwater. go in it, then you should have found the submarine. if you use dive there you can get to sootopolis :-)
It is almost exactly in between Sootopolis City and Ever Grande City on your map. Go there and dive underwater. Search around underwater and eventually you should find an underwater cave containing the submarine. When you find the submarine, head to the surface.
South of Cinnabar Island where that deep part is. Use dive. Get dive from ash beside fire cave in tubuli town.
The HM Dive is not in SoulSilver or HeartGold, for there is no deep water to dive into.
You have to go to Undella and get the HM dive. Then you can dive (:
The process of a submarine to move from the surface of the ocean to a position underneath the surface is called a dive. This is accomplished by allowing water to fill the tanks of the submarine, the heavy water pressure now inside the vessel now will force it to sink below the surface, thus a "dive".
Submarines dive by opening vent valves that allow sea water to push air out of their ballast tanks.
you have to find the darkest patches of water to dive down in