Plagne Bellecote chair tsd: The Plagne Bellecöte / Roche de Mio sector of La Plagne has some of the fastest, high-speed, detachable chairs in the entire resort – which is just as well as this is also one of the busiest areas. On the whole, the chairs here manage well considering the volume of traffic they get – although the Arpette chairlift can suffer badly during the busier holiday periods due to the number of skiers and snowboarders heading to the Montchavin pistes and onwards on the route from La Plagne to Les Arcs.