The way up was through nice nature and we've met quite a lot of cows on the way:
They we've finally arrived to Creux du Van:
Of course we could not miss an opportunity to take a group photo:
After wandering around the rocks, we took a lunch and headed to Neuchâtel, where some music festival was going on:
The whole day was nicely finished on a boat with a dinner.
PS: More DebConf photos are available in my gallery.