A guide to the best walking routes on both sides of Mont Blanc, in France and Italy, based around Chamonix and Courmayeur. 50 day walks are described and the guide outlines 4 multi-day treks around two sides of the Mont Blanc massif; Chamonix and Courmayeur. The day walks range from 2 to 12 miles and are organised by base and include both high-level and easy valley walks. In addition to the high-level walks there is often a valley walk that can be done whatever the weather, on tired days, with children, by bike, or as a run. The four multi-day treks that are briefly detailed all use parts of other walks already described in the guidebook and with a little imagination many more can be invented. The trek descriptions given are short, with just map information, daily altitude gain, distance and route details. These are not intended to be full guides to the routes, rather a basic outline to be used in conjunction with the appropriate maps.