I have just discovered this thread. Reading about the GR 10 makes my heart go very fast. I have walked it from start to finish words fail me in describing how beautiful it is. My introduction to it was by accident. I was walking the Le Puy Camino and had teemed up with a Swiss lady who was walking from Geneva to Santiago and on to Finisterre. She wanted to do the Del Norte and was going to get a bus from St Jean Pied de Port to Irun. I had walked the complete Camino Francis a few months earlier so the Del Norte sounded good for me. Both of us had never hiked real mountains or even heard of the gr 10 but we asked was it possible to walk from St Jean on a marked route to Irun someone said the gr 10, but it was
dangerous. Like kids that word made us want to do it. I went into the tourist office in St Jean and persuaded them to photocopy a few pages of a guide and off we went. I said goodbye to my Swiss friend near Bilbao and come back to Ireland.
The gr 10 bug had taken hold. The next year I started in St Jean Pied de Port and walked for 36 consecutive days to Bolquere. The next year from Bolquere to Banyuls sur Mer on the Mediterranean. I included a four day detour to the Glacier of Vignemale and Garvanie. It took a total of 50 days. It has a total accent of 50,000 meters and decent of 50,000 meters, that is an average of 1,000 meters up and down every day.I did not bring a tent, I slept in Gites, Mountain Refuges both manned and unmanned. Ciceronne has a guidebook by the late Paul Lucia whic I sometimes used, but really the only guidebooks to use are the French Topo guides, I was able to follow them with hardly any French, there are 4 guides that cover the gr 10 and their maps are excellent. I also brought a small gas stove. Eatinf tips, mix a good bag of Muesli with powdered milk, you will get several days out of a kilo, also a Quino pasta mixed with good quality cup of soup. Most days you will be able to get a proper hot meal.
I have a special section of my website dedicated to the gr10 with about 80 photographs here is a direct link to it
http://www.caminogallery.com/galleries/?id=13 also photos in my blog
http://www.dermotdolan.blogspot.ie/2013/09/pyrenees-photographs-collection.html (last section of the Pyrénées) also
http://dermotdolan.blogspot.ie/2013_08_01_archive.html and
http://dermotdolan.blogspot.ie/2013_09_01_archive.html
There is also an excellent book (not a guidebook) called If you only walk far enough by Steve Cracknell about his journey.
It is a tough walk and bears no direct resemblance to a Camino, but is worth doing it is unbelievable. I have also put a lovely one hour video together of it, but due to music copyright can not yet post it to You tube.
Pm me and I will answer any questions you may have. I will post one photograph here. This is taken on the detour near Vignemale.
Regards Dermot (Nalod)