Swimming

Swimming was introduced in Grand Theft Auto San Andreas and it was a major ability where you can find oysters in the sea or dive around to explore the waters of San Andreas. There were only 3 games that there is the ability to swim, mainly, Grand Theft Auto:Vice City Stories (but it does not feature the ability to dive.), Grand Theft Auto IV and Chinatown Wars.

Missions involving Swimming
In GTA SA:
 * Amphibious Assault
 * Vertical Bird

In GTA VCS:
 * Soldier