@Aishlyn , hi from across the ditch
In April 2016 I landed at CDG and had pre-booked TGV to Lyon.
My arrival at CDG was about 10h. I think all the world landed at the same time as the scrummage through immigration was interesting".
My travel agent had allowed a 2 hour gap. As I wandered around I realised I could have purchased my ticket to Lyon on arrival.
I had decided to spend two nights at Lyon so I could do a walk about there for a day.
Early Monday afternoon caught a TER train direct to Le Puy. I understand most trains finish at Saint-Etienne and a transfer is necessary. The TER has large windows: this was a bonus for a rubber neck, especilly after Saint-Etienne through the gorge of the upper reach of the Loire on the approach to Le Puy
Kia kaha (take care, be strong, get going)