The Drupal Developer Days 2015 will be held in Montpellier, France.
The exact address of the venue is the following:
Université Montpellier, Place Eugène Bataillon, 34095 Montpellier
To come to Montpellier you can land to Montpellier International airport.
If you don't have a direct flight to Montpellier, you can land in Toulouse and take the train to come to Montpellier. An average price for the train ticket between Montpellier and Toulouse is 15-20 € and takes 2 hours (see our "Travelling" page for more airport locations).
We recommand you to create an account and book your train tickets with Captain Train, the website is easier to use than the official train company.