Cicerone - Guide de randonnées (en anglais) - Trekking the Cami dels Bons Homes GR107 (crossing the Pyrenees in the Cathars' footsteps)

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Guidebook to trekking the 225km (140 mile) Cami dels Bons Homes, a Cathar trail through the French and Spanish Pyrenees. The GR107 cross-border route between Foix in Ariège and Berga in Catalonia is described in 10 stages and includes detailed maps, profiles, accommodation listings and facilities.

Seasons
As this trail crosses the Pyrenees, which are blanketed in snow in the winter, the best time to walk the entire trail is between May and October.
Centres
Foix, Roquefixade, Montségur, Comus, Orlu, Mérens-les-Vals, Porta, Bellver de Cerdanya, Bagà, Gósol, Berga
Difficulty
The trail is divided into 10 stages and each stage finishes in a village or town where accommodation can be found. There are some long stages/days that can be divided and options for shortening these stages are mentioned in the book. Some sections of the trail are long and somewhat demanding, so a reasonable level of fitness is required for the trek.
Must See
Cathar history, Pyrenees mountains, Foix castle, Roquefixada castle, Montségur castle, Portella Bésines, Portella Blanca, Cadí-Moixeró Natural Park, Pedraforca, Gósol castle, medieval towns

GPX files available to download
1:100,000 maps included for each stage
Handy stage facilities planner that highlights information about accommodation, facilities and public transport along the route
Advice on planning and preparation

(Source : Cicerone)