See if it's possible to attend a service at Synagogue. You'll learn a few things about the customs, traditions and practices of the Jewish faith.
This Jewish house of worship is located in Binnenstad-Zuid. If you're looking for things to do on a budget, you'll be happy to know it's free to visit. When you've finished exploring Synagogue, look up other attractions in the area. Grote Markt, Groninger Museum and Prinsenhof Gardens are a few recommendations.