This is a paid asset, but now you can download Realistic Waterfall Prefab for FREE, Please keep in mind this package is provided only for learning purposes or to be able to test before buying the product, NOT FOR COMMERCIAL PURPOSES.
For more detail this asset from the Unity Asset Store: Click Here
Realistic Waterfall Prefab v1.5
“If possible, please buy the package to support the developer”
>Compatible with Unity 2017
Realistic waterfalls are hard to realize. This time, we give you complete waterfall prefabs. You can use them directly in your game! There are three styles of waterfall: particle style, refraction style and standard mesh style. And standard mesh style has three levels of quality. According to your efficiency concerns, you can use the proper one of them~
>>20+ textures you can acquire
>>4 SoundFX(wav) you can acquire
>>5 Waterfall Prefab you can acquire
>>Compatible with SRP ,URP , HDRP