Angon waterfall is next to Talloires, on the East side of the Lake, on the way up to Col de la Forclaz (see my previous post https://www.taxi-massingy.com/en/col-de-la-forclaz/
From Annecy you have to take the D909, just before Angon take the exit to the left.
The trail starts a little bit further and goes steep up.
Another easier and faster possibility is to drive from Talloires to Verel over the D42. Before Verel center there is a signed trail starts from Chemin de Verel on the right, you will find a parking there and it will take approximately 30 min to reach the waterfall without much up hill walking.
In the middle to the walk there is a nice view point on the lake called “Pont des fées”.
It is possible to nearly walk behind on a man made path in the mountainside.
Angon waterfall is approximately 40 meters high and is fed by 2 small rivers Nant de Grenant and Nant d’Ogy.