I am interested in traveling from Chamonix to Nice through Route des Grandes Alpes in early June. From what I read on the web, it is easily doable in 2 days - 8hr per day driving without major excursions. Is it correct? What does the road look like (I assume it's mostly 1 lane per direction, with speed limit around 50mi/hr)? Is there any risk of having part of the road closed in early June?
Thanks in advance,
Chister