A personal view of the 50 finest perambulations available on the planet Barry Stone, author of 1001 Walks You Must Experience Before You Die, delves into some of the lesser-known aspects of the world's most famous – and not-quite-famous-yet – trails. The perfect accompaniment to practical guidebooks, Stone relates how slings and carabiners kept him from falling headlong off the Sydney Harbour Bridge, and reports on the progress of the continental-wide monster, the Trans Canada.