Screenshot showing Trevor swimming beside a submarine.

Swimming is a feature first introduced in GTA: San Andreas. The feature has then been present in GTA: Vice City Stories, GTA IV and its episodes, and now GTA V. Swimming has been greatly improved since it was last seen. Now, like in GTA: San Andreas, the player can dive below the water, using a scuba suit, but also using submarines. Players can also carry knifes underwater, likely to protect them from animals such as sharks. Players can also lose their wanted level by hiding underwater.