The senior experts go on excursions together. In addition to the discovery of new horizons, these events also focus on the social contact of the seniors. In addition to the seniors of the GDCh, the seniors of the VAA, work group Hanau-Wolfgang, usually also take part in these excursions.
- A tour of the Höchst industrial park and the Sanofi-Aventis laboratories on May 23, 2007, the 1st SEC Technology Tour, marked the beginning. This excursion was organized by Holger Bengs; all other tours were organized by Wolfgang Gerhartz.
- On June 16, 2009, the 2nd SEC Technology Tour went to Zwingenberg on the Bergstraße to visit BRAIN AG.
- The 3rd SEC Technology Tour went to Darmstadt on August 30, 2010 to visit the ESOC (Europe's gateway to space) and the Art Nouveau villas on the Mathildenhöhe.
- On August 26, 2011, the 4th SEC Technology Tour started to Erbach in the Odenwald (Einhardsbasilika in Steinbach and city tour) and finally to the Koziol company.
- During the 5th SEC Technology Tour on November 14, 2013 to Darmstadt, the Hundertwasser House was visited and then the Merck company (focus on OLED).
- The 6th SEC Technology Tour also went to Darmstadt to the Hessian State Museum and to the Society for Heavy Ion Research (GSI) in Wixhausen.
- The Fantastic Library and the award-winning Leica Camera AG building in Wetzlar were the destinations of the 7th SEC Technology Tour.
- The 8th SEC Technology Tour took place on October 4, 2017 at Deutsche Amphibolinwerke DAW SE in Ober-Ramstadt.
- The August Köhler SE paper factory in Oberkirch was on the program for the 9th SEC Technology Tour on 7 Sep 2018.
- The 10th SEC Technology Tour took us to the flat steel mills in Salzgitter and the old town of Braunschweig (30 Sep-1 Oct 19)
- The 11th SEC Technology Tour went on September 12th and 13th, 2021 to Duderstadt im Eichsfeld (city tour) and to Deuna (visit of the plastics processing of B+T and the cement works of Dyckerhoff).
- At the 12th SEC technology tour (27-29 Sep 2022) we had the opportunity to visit the Food Research Institute in Oldenurg.
