The Erasmus Student Network (ESN) is an Europe-wide network of students helping other students on their semester abroad. Under the slogan “unity in diversity” they organize a variety of events to help them integrate in their new environment.
Together with the IStO, ESN Karlsruhe is organizing the welcome week (called O-Phase) for the international students. During the semester, they offer a lot of regular events in Karlsruhe as well as trips to nearby places and all over Germany, all of them organized by volunteers and on a non-profit basis.
Take a look at their website and follow social media channels (Facebook and Instagram) to not miss out on any events.