The most reliable method is using a . This mod typically functions by adding a script that detects when the player is in water and triggers a basic "floating" or "swimming" animation while preventing health drain.
Once in-game, you typically activate the mod via the CLEO touch menu (swiping down on the screen). Why couldn't swim originally? gta 3 swimming mod android
: You need the CLEO Android library installed on your device to run scripts. The most reliable method is using a