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The costs depend on the destination, transportation, accommodation and other details of the excursion. The IAD pays CHF 150.- per person, which should cover some of the expenses, but probably not all of it.
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Previous destinations
The students can make suggestions. Of course, it would be nice if the destination changed regularly.
- 2018 – … (checking)
- 2017 – Hamburg
- 2016 – Munich
- 2015 – … (checking)