Chamonix Mont Blanc

Hi! I was a lucky one in the registration for utmb (ultra trail du Mont Blanc) and I would like to share the trip with nature lovers that are happy to hike around this magical place. I live in the Netherlands (Amsterdam), and ideally I will take the car to go down to Chamonix on Aug 20th, early morning. I am going with one of my best girl friends, she lives in Antwerp (BE) so from A'dam we should pick her up and then start the route. I have a mid-size doggie and she has also one, they are both very well behaved and will join us in this trip. We would love to stop halfway, meaning the 1st night somewhere in Bourgogne. Saturday 21st we head to Chamonix and we spend until 27th in the area. Sounds like a plan? Let’s organize together!! :)