Arrens-Marsous to Gite Viellettes. Easy day splitting 20km with a couple of massive climbs in two. I can do 20km but only if I want to collapse at the end of the day!
The GR10 is nothing like the GR65. On the 65 I could easily walk 25km, rolling hills lots of flat I could walk myself into the zone. Empty head, zen-like. On the GR10 no chance. I am either slogging it uphill very aware of where I am, every breathe. Or carefully stepping downhill, watching for slips, foot placement.