Here is an Unreal Engine 5.4 Tech Demo I am working on.  Currently it is in beta V2, but it is very playable and rather well optimized for UE5 and all of the dense vegetation. 

It is based off of Florida natural Springs.

https://jrminate.itch.io/natural-springs-tech-demo

Here is my ArtStation link that explains everything in more detail.  https://www.artstation.com/artwork/YBALQ6