Multi-day hiking adventures on the famous Tour du Mont Blanc trail can start from Chamonix or nearby Les Houches. This trail is over 165km (100 miles) long and holds many breathtaking mountain views as it circumnavigates the Mont Blanc massif, and passes through three countries - France, Italy and Switzerland.
If you do not have time to do the full tour, you can walk (in either direction) to Courmayeur Italy (1/2 way) and take a bus back through the Mt Blanc Tunnel, or take the lift from Entreves to Pt Helbronner, and across to the Aiguille du Midi and back down to Chamonix for a more breathtaking finish to the journey.
You can find out more information about this route on many web sites such as starting with this one: and this one
The main season for doing the Tour du Mont Blanc is late June until early September. Before and after this time, the huts will be closing. Always check ahead to find out which huts will be open when you are planning to do the trip. Peak time on the trail is July and August. Snow can be found on the trail in June and September, depending upon weather conditions, and be prepared with enough layers in your backpack for cold wet weather or even snow on the high cols at any time of the year.