If you travel by train, be advised there is no rail station at Tallard.
You can go to Gap station and take a taxi to Tallard.

For more inofrmations go to the SNCF website

If you travel by plane, Marseille ( Marignane) airport is nearest. From there you will find car hire. A bus station or a kink to the train station.

For more informations go to the Marseille airport website

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