GoPro of most of the blue run at Les Carroz in the Grand Massif area of the French Alps. John spent a week in the Samoëns area riding with Bike Alp (bike-alp.com) in early July. The area had had a chunk of rain so many of the main Samoëns runs were a bit wet, whereas Les Carroz is quick drying and a good bet.
The blue isn't especially technical (there's a few optional hard bits in the film) but it's super fast and loads of fun. It's about 4km long and drops about 600m vertical metres back to the lift station. There is also loads of 'secret' singletrack runs hidden in the woods in the area too - sweet singletrack, steep loam, roots, all sorts.