Les 3 Vallées started as three valleys, Saint-Bon (Courchevel), Allues (Méribel) and Belleville (Les Menuires and Val Thorens), that were joined by lifts so skiers could cross them on one pass. A fourth valley, Maurienne, came in through the village of Orelle in the 1990s. Today it is sold as the largest linked ski area in the world: 600 km of pistes and 169 lifts by the operator's count, seven resorts, and a pass that works everywhere.
The three places couldn't be less alike. Courchevel 1850 was built from scratch as a resort and is where the money is. Méribel is a stone-and-wood chalet town founded by a Scotsman and a group of British investors, and it is the middle of the map, which is why most people sleep there. Val Thorens is the highest ski resort village in Europe at 2,300 m, concrete and efficient, with the best snow and the longest season. Five days is the right length because it gives each valley a day, one lighter day in the quiet Belleville valley and a last day for the traverse that makes this area unlike any other.
The plan runs Courchevel, Méribel, Val Thorens and Orelle, the Belleville valley, then the traverse, and it assumes you sleep in Méribel and ski Monday to Friday. Méribel is the one base from which every day starts and ends on skis; Courchevel and Val Thorens are four lifts apart, so neither end works as an easy base for all five days. Each day below says what changes if you sleep elsewhere. A Monday start skips the Saturday changeover traffic and finishes before the weekend rush, and Saturday itself is the cheap, quiet day if you stay longer. Pick a week outside Christmas, New Year and the French school holidays: Monday 18 January 2027 is a clean start. For the country around it, see France.