Water Block

Tutorial:

Adds a cube of animated water to the scene.
This asset uses Volume. The volume parameters can’t be managed from the Geometry Nodes modifier panel, so in order to change the material related parameters, you have to switch to the material tab in the addon parameter and have the object selected:

To change Geometry Nodes related parameters, switch back to the GN Assets tab:

A few tips to make it look good:
-Use a pure sky HDRI with no ground. You can find some here
-Remember to adjust the density in the material properties
-If you increase the size of the cube, you will have to also increase the resolution of the mesh to see the waves correctly, be careful as this can get heavy.
-If you want to use it for a very large water mass you can instead use the material Water Mass that will perform better on large objects

Parameters

Material: Water Material

▼ WATER
Size X: Cube Size in X axis
Size Y: Cube Size in Y axis
Vertices X: Resolution on X axis
Vertices Y: Resolution on X axis
Water Level: water height
Viewport Subdivisions: Subdivisions in the viewport
Render Subdivisions: Subdivisions in renders

▼ WAVES
Height: Waves height
Scale: Wave texture scale
Speed: Wave animation speed

▼ FLOATING
Floating Collection: Collections of objects floating (Foam will also form close to this objects)
Floating Level: Offset the floating line of the objects
Up and down: Animation up and down
Sides: Animation to the sides
rotate: rotation animation
Foam Collection: A collection with objects that will have foam when in contact with the water