I’m planning a month-long trip around France and want to use the rail system. My current route looks like this:
Paris → Strasbourg → Chamonix → Annecy → Lyon → Arles → Nice → Marseille → Paris
The part I’m confused about is the Strasbourg → Chamonix leg. When I use a trip planner, it shows that the train goes through Switzerland. I’d like to save some money and just get the France-only Eurail Pass, but since that route technically crosses into Switzerland, would I need to buy the Global Pass instead?

