After the Brooks Marathon du Lac d'Annecy: Chamonix
The Route: Annecy → Chamonix (2 nights) → Geneva Airport Logistics: Direct FlixBus, no transfer required; onward shuttle or bus to Geneva Airport for departure. Marathon Month: April Duration: 2 nights
Central Annecy ──(FlixBus, ~1h10, 3 daily)──> Chamonix (2 nights)
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Geneva Airport (GVA) ◄────┘ (bus/shuttle, ~1h)
The Brooks Marathon du Lac d'Annecy finishes flat, at lake level. Chamonix, an hour or so north by direct bus, is the opposite proposition: a valley town sitting directly beneath Mont Blanc, western Europe's highest peak, with cable cars and via ferrata routes climbing straight out of the town centre. FlixBus runs the route direct in around 1h10, three departures a day, with no need for a hire car for the trip itself.
April in Chamonix is not summer hiking season, and that needs saying plainly before anything else about this trip. High-altitude trails can still carry snow well into late spring, and some of the valley's cable cars and lifts sit in a between-seasons gap, neither running a full winter ski schedule nor yet open for summer hiking traffic. Treat this trip as a mountain-town and scenery extension, not a hiking trip, unless the current conditions and lift schedule support more, and check the operator's live status before building a day around any specific cable car.
Nights One and Two: Chamonix
Chamonix town itself sits on the valley floor, at a walkable, mostly flat elevation, which is the point for two nights spent on legs that ran a marathon days earlier. The Promenade d'Arve, a paved and level path running along the Arve river both toward Argentière in one direction and Les Houches in the other, is the primary recovery asset here: wide, well-used, and entirely free of the steep ground the surrounding peaks are known for. Even a short stretch of it, an hour or so out and back, gives long unobstructed views up toward the Mont Blanc massif without asking the legs for anything a valley floor can't provide.
Place Balmat, the small square at the heart of town, and the streets radiating from it hold the bulk of Chamonix's shops, cafés and mountaineering outfitters, all on flat, pedestrianised ground. The Aiguille du Midi cable car, departing from its base station a short walk from the centre, is worth checking on arrival: when running, it climbs to nearly 3,800 metres and gives a view over the Mont Blanc range that no valley-floor walk can match, but its schedule and any weather-related closures should be confirmed on the day rather than assumed from a summer timetable, particularly this early in the season.
The Montenvers train and the Mer de Glace glacier viewpoint it reaches, one of the valley's best-known attractions in summer, is a useful example of exactly the seasonal gap this trip needs to plan around: the current published schedule doesn't open the line until 1 May, so it simply isn't available for an April visit. That single fact is worth knowing before building a day around it rather than discovering it at the ticket office; treat the Aiguille du Midi as the one high-altitude option worth checking, and everything else in the valley's cable-car network as a summer plan for a return trip.
Where to stay: Mercure Chamonix Centre and Alpina Eclectic Hotel Chamonix both sit within the town centre, close enough to Place Balmat and the Promenade d'Arve that no onward transport is needed for either.
Where to eat: Le Monchu, in the centre of Chamonix, serves Savoyard specialities: the same tartiflette-and-fondue register as Annecy but suited to two nights of appetite rather than a single post-marathon evening, given a couple of days' further recovery behind it by the time this trip reaches Chamonix.
Getting to Geneva Airport (GVA)
Geneva Airport is the practical departure point for most international flights home from this leg of the trip, reached from Chamonix by direct bus or shuttle service in around an hour. Several operators run this route; check current timetables before booking, since frequency and journey time vary by service and by season. Because the connection crosses back into Switzerland, build in a buffer for the border and for check-in rather than cutting a shuttle connection close, particularly on an early-morning departure.