The valleys of St Bon (Courchevel, La Tania), Les Allues (Méribel) and Belleville (St-Martin-de-Belleville, Les Menuires and Val Thorens) comprise the largest skiing area in the Alps, (over 400km2). The choice is vast: cross-country trails, off-piste skiing, wide gentle slopes or the most demanding technical runs ("Bouquetin" at Mottaret, "Couloirs de la Saulire" at Courchevel, "Masse" at Les Menuires).