This is a paid asset, but now you can download Beach Waves for FREE, but please remember this package is provided only for learning purposes or to be able to test before buying the product, NOT FOR COMMERCIAL PURPOSES.
Detail this asset from Unity Store: Original Link
Beach Waves v1.1
(Tested with Unity version 2020.3.23f1)
Add some dynamic realism to your water shoreline with this beach waves effect.
Simply align this particle effect to the water’s edge, placing it above the water material (Unity’s free water system is used in the example video) to create waves crashing onto the shore.
Three different sizes are included to more easily follow a twisting angled coastline. The looping sound effect is also supplied.
New to version 1.2, HDRP and URP versions of the assets are now included.