Lake Walk (Seerundweg) in St Moritz at night?

We'll be overnighting in St Moritz in late August. I've read that the walk around Lake St Moritz is lovely. Sunset is just after 8:00pm that night. Is the Lake Path (Seerundweg) lit up after dark? Or is the walk better done in the daytime?

I would do this in day time when you can see the surrounding mountains. The trail is not lit up and there would not be much to see after sunset. It's an easy and very nice stroll during day time though.

That's what I thought. Thanks Arno.