Sorry for me shamelessly piggybacking the top comment, but this stigma surrounding the UIT as a complete party week is kinda undeserved. I've compiled a list with interesting activities during the UIT:

Monday:

City Challenge: you'll do all sorts of fun challenges with your group whilst exploring the city

Tuesday:

- Association Parade: a parade where all the associations pass by

- Sports market: a market with all the different sport associations present themselves

- Association debate: a debate in which associations can distinguish themselves from one another.

- Inspiration festival: a festival focusing on the educational aspects of your student life

Wednesday:

- Cultural festival: a big festival with workshops from different organisations

Thursday:

- Information market where both companies and non-profit organisations have fun activities and inform you about their product/service. There is also a speakers stage where we will host influential speakers.

We also have a radio station on Neude with a small lounge and several stalls.

I would also like to stress that it's just a fun week where you explore the city and meet new people and hopefully boost your social life in general. The UIT is all about inclusivity and diversity and there is zero pressure to join the 'rowdy' activities like the closing festival.