South of Chamonix, this is likely the best choice for families, and often has the best low-altitude conditions. It is the only ski area below the treeline, so it is a good place to go in poor visibility.
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Two cable cars (Bellevue one and Parion gondola) ascend from Les Houches, 5 km down the valley from Chamonix. The larger cable car rises to the ridge of Bellevue at 1794 m. As the name implies, there are excellent views of the Chamonix valley, with Mont Blanc to one side and Brevent to the other, and a short walk over the ridge brings St Gervais, Sallanches and the Glacier de Bionnassay into view. Bellevue is on the usual climbers' ascent of Mont Blanc towards Nid d'Aigle. The smaller cable car, rising to Prarion at 1900 m, is same price as the larger.
This is north side of the valley, opposite to Mont Blanc, so it gives you better views of the massif. The valley station is in Chamonix town centre, and the first car rides up to Planpraz at 1999 m. The second car rises to 2525 m. As it's south-facing, the lower slope loses its snow early, so it may be possible to drive up to or walk down from Planpraz. Further along the valley, another car ascends from Les Praz at 1060 m to La Flegere at 1894 m.
Téléphérique de l'Aiguille du Midi
This is one of the highest cable-cars in the world. The valley station is in Chamonix town centre at 1035 m. The first car ascends to Plan de l'Aiguille at 2310 m. From there the second car ascends to 3810 m, including one 3 km gulf between pylons, with the complete ride taking 20 minutes. At the top there is a restaurant and viewing platforms, and you can take an elevator to the summit of Aiguille du Midi at 3842 m. Dress very warmly. This is the highest point of the lift system, and the summit of Mont Blanc looks temptingly close, but don't be deceived: it's an arduous up-and-down route that needs a full day to ascend and return. You can continue towards Italy by the Vallée Blanche cable car (listed below); expert skiers can descend the Vallée.
Crystal and Mineral museum
Impressive collection of crystals, mostly from Chamonix (smoky and rose quartz), but also from the rest of the Alps and worldwide. Describes the geology and formative processes involved.
Jacques Balmat (1762-1834) was one of the pair who first reached the peak of Mont Blanc. The statue, erected in 1887, is a popular photo spot, looking south so that Mont Blanc forms the background. But where's his climbing companion Michel-Gabriel Paccard? Not there: the second figure is de Saussure, who'd put up the prize for the ascent, and who Balmat later guided to the summit. Balmat was a very talented mountaineer, but overplayed his celebrity, and wrote Paccard out of history. Not until 1986 did Paccard earn a statue, sitting alone with his alpenstock on ave Michel Croz near the Alpine Museum - the first version became frost-damaged and was replaced in 1991. Dr Paccard (1757-1827) went on to be a leading local citizen and magistrate, and married Balmat's sister. What was his non-personning really all about?