keith wallace in the french city of nantes.heading there any time soon, here's the travel show‘s top tips. the voyage of nantes is an urban trail that winds several miles through the city taking in dozen of artistic and historical sites. the distinctive green line will take you around all sorts of treasures, some of which are created especially for the summer and many of which are free. we have about a0 artists everywhere in town with great installation, follow the green line, it's kind of for children to discover the city with their parents. at the end ofjune the museum of fine arts reopens after a six—year closure. it's been redeveloped and expanded and will become one of the region's largest galleries. treasures include works by picasso, kandinsky and max ernst. if you want a glimpse of some of the region's most important chateaux, head a couple of hours up the river to places like chambord, amboise, loire. they're not only historically important, they‘ re also beautiful to look at. and finally, if you fancyjoining in the gr