How to create a splash effect when my character to play in the water

Well the title says it all, I would create this effect so my character touched the water, and complementary effects of bursting bubbles on the surface of the water

Thanks in advance

Depends on the scale and what sort of water you have. For simple flat water, there is already a splash in the standard assets that’s simply an expanding fading smattering of foam particles. Basically, you make a thin box collider at the surface of your water and emit particles based on the speed of any collider that triggers it, at the position where it triggers.