Our Beneath Mont Lozère walk may be among our most demanding, but there’s still ample time for leisurely picnics. Our favourite lunch spot on this holiday is on the banks of the infant Tarn, just a few miles from its source. If you can trust yourself not to drop your sandwich, you can sit on one of the smooth, rounded boulders in the river, with your feet in the water, as we did. A less risky, and just as pleasant an option, is to stay on terra firma, which is carpeted with bright purple heather in August.