The Submarine in GTA 5 Online, which is also known as the Submersible, is one of only two underwater vehicles available in Grand Theft Auto 5. It allows you to explore the oceans of San Andres which themselves contain many hidden packages, Easter eggs, ship wrecks and even UFO’s.
The Submarine in GTA 5 is a one person vehicle which automatically equips you with a diving suit upon entering it, allowing you to further explore the depths when leaving the Submersible.
The submarine is extremely easy to find in GTA 5 Online but it is important to note that you will have to be at least level 30 for it to appear.
The video below shows the exact location of the submersible and provide a walk-through of how to obtain it.
Video also available at https://www.youtube.com/watch?v=QrRdabazq8o
Find more tips and locations in GTA 5 Online https://www.youtube.com/watch?v=aS81ZDFaHZ8&list=PLRFD6YAynkiwN6jSPmErumpT0ZiEeT02I