Before the travel lecture with Corinna Rockmann begins at 7:30 PM in the event room on the 1st floor, a geocaching event will take place in the foyer on the 1st floor from 6:45 PM. There, everyone will have the opportunity to sign the logbook. The logbook will be accessible to all from 6:45 PM to 7:30 PM, after which it will only be available for those attending the travel lecture.