A compact guide to exploring France on foot with recommended, mostly two-day walks throughout the country. Each of the 60 featured walks includes highlights, suggested accommodations, access information, and a small black-and-white map adapted from the 1:25,000 IGN series. A full chapter is devoted to the 15-day demanding GR20 hike through the interior of Corsica. Day hikers too will find plenty of suggestions, from a trek across Paris to short walks in the Pyrennes.  (FRN229, $24.99)