The walk follows theGR® 6 and 60 (red and white markings), as well as theGRP® Tour du Causse Méjan (red and yellow markings). A 1:25,000 map is required.
The individual stages are rated as Moderate or Difficult. For the entire circuit, as there is no intermediate rating, I have chosen ‘Difficult’ to reflect the stages rated as such.
I recommend completing this route in the direction described here (anti-clockwise). This is because the hike involves climbing twice from the valley up onto the Causse and descending twice from the Causse back down into the valley (each time involving a vertical ascent of around 500 metres). It so happens that by far the steepest section is between the hamlet of La Caxe and the Tarn Valley (stage 5), and it seems preferable to tackle this on the descent rather than the ascent.
Good walking boots are essential. You must bring warm clothing and rainwear. As long sections of the route are exposed, bring sun protection depending on the season and your own sensitivity to the sun.
Water sources are very scarce throughout this route; on some stages, there are none at all. Make sure you carry sufficient supplies for each stage.
Opportunities to buy provisions are unevenly distributed along the route: plentiful at Le Rozier and Meyrueis, limited elsewhere. There are a few opportunities (indicated in the descriptions of the relevant stages) to buy farm-produced or artisanal cheeses or farm-style cured meats. It is also possible to order packed lunches from the lodges or hotels you stay at (please enquire).
Accommodation in a stopover lodge or hotel every night (contact details on the information sheets for the various stages).
Hike undertaken by the author from 30 July to 4 August 2013.