We are planning to go from Bilbao to Marseilles. After some research, it seems it is not viable to travel to France from Bilbao, so going to Barcelona seems essential.
From Barcelona, there is a high speed train to Toulouse, and then we can take a train to Marseilles. Is the high speed valid on Interrail Global pass?
If not, is there another route which is valid from Barcelona to Marseille?