INTRO is the introduction weekend for first year students of (Applied) Physics, (Applied) Mathematics and Astronomy at the University of Groningen. It is organised by the study associations for these studies.
This is a yearly event where students have the first opportunity to meet each other before starting their new studies in their new home town. You'll make friends that will help you through your study during those difficult times of exams, that can help you with that long problem set, or can help you empty that crate of beer.
During the events, no activities are mandatory! INTRO is not intended to perform hazing rituals - it's just a nice first weekend with your new friends. The organising parties have also signed a code of conduct with the university.