The main reason why I rated this movie 6 stars instead of 5 is that the director took a risk and didn't use any music at all only environmental sounds.
Otherwise, the movie is full of very beautiful scenes. But the balance between the lake as the main protagonist and the human characters doesn't really work, that's why it's not easy to connect to the movie emotionally. You kind of have to force yourself to watch it, more like showing respect to the experiment the director offered us. It feels more like an experiment than an emotionally work. The visual form is based just on beautiful views, not on experimental shots or something new. In the end, the film doesn't have any dynamic suspense or compositional rhythm that gives you an emotion which starts at the beginning and grows until the end.