The way of Santiago from Saint-Bertrand-de-Comminges through Val d'Aran is now marked. There's a website with gps track and useful information about this way. It goes until Berbegal where it joins the Catalan way.
Hello.
From Lourdes, south through Pyrenees
Option 1 . Val d'Azun. Arrens-Marsous and Port de Peyre-Saint-Martin. Sallent de Gállego
Option 2 . Gavarnie. Port de Boucharo
The Brèche de Roland is a way through high pass going on a glacier (small but sometimes difficult to pass through).
This site is run by Ivar at in Santiago de Compostela.
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