It is recommended to register in advance for the conferences, you will be able to benefit from a personalized program which will guide you in your visit. However, the places available are not guaranteed on site. You can participate in the conferences on site without registering in advance (subject to availability).
The main stage can accommodate around 165 people and the workshop stage 55 people.
Given the expected crowds, we recommend that you come early if you wish to participate in a conference.