Hey there!
Recently I’ve watched Freya Holmér’s incredible video on Bèzier Curves and wanted to try doing something with them! The camera movement idea seemed pretty interesting, so I made this little demo of a camera traveling along a path comprised of some curves. It was a pretty nice opportunity to learn more about the Curve3D and Path3D classes, and pretty simple to do, too!
The initial idea for the scenario was to have just one mountain, created through one of the default heightmap textures, but the visible transition between the ground and skybox was bothering me so I tacked in some more mountains to hide it 
Hope you enjoy it, and that it can serve as reference for more people wanting to do something similar!
I guess you could add it into the doc ?
cc