The senior experts go on excursions together. At these events - preferably a mixture of culture and chemistry - the focus is not only on discovering new horizons but also on socialising with the senior citizens. In addition to the senior citizens of the GDCh, the senior citizens of the VAA, Hanau-Wolfgang plant group, usually also take part in these excursions.

This first excursion on 23 May 2007 was organised by Holger Bengs; all subsequent tours were organised by Wolfgang Gerhartz, sometimes with strong support from Eva Wille, Klaus-Peter Jäckel and Hans-Uwe von Grabowski.

• The tour of the KIT Campus North in Karlsruhe (formerly the Karlsruhe Nuclear Research Centre) was the destination of the 15th SEC Technology Tour.
• On 23 Sep 24, we met for the tour of ThyssenKrupp in Duisburg.
• The 13th SEC Technology Tour was held at the University of Duisburg. SEC-Technology-Tour took us to Weinheim an der Bergstraße on 22 Feb 2024 to the company Freudenberg SE.
• During the 12. SEC-Technology-Tour (27-29 Sep 2022) we had the opportunity to visit the Food Testing Institute in Oldenurg.
• The 11. SEC-Technology-Tour went to Duderstadt in Eichsfeld (city tour) and to Deuna (visit to B+T's plastics processing plant and Dyckerhoff's cement plant) on 12 and 13 Sep 2021.
• The 10th SEC-Technology-Tour took us to the flat steel plants in Salzgitter and to the old town of Brauschweig (30 Sep-1 Oct 19).
• The programme for the 9th SEC Technology Tour on 7 Sep 2018 included the August Köhler SE paper mill in Oberkirch.
• The 8th SEC Technology Tour led to Deutsche Amphibolinwerke DAW SE in Ober-Ramstadt on 4 Oct 2017.
• The Fantastic Library and the award-winning Leica Camera AG building in Wetzlar were the destinations of the 7th SEC Technology Tour on 24 Nov 2015.
• The 6th SEC Technology Tour also travelled to Darmstadt to the Hessian State Museum and the Society for Heavy Ion Research (GSI) in Wixhausen.
• The 5th SEC Technology Tour to Darmstadt on 14 Nov 2013 included a visit to the Hundertwasser House and then to Merck (focus on OLEDs).
• On 26 Aug 2011, the 4. SEC-Technology-Tour to Erbach in the Odenwald (Einhardsbasilika in Steinbach and city tour) and finally to the company Koziol.
• The 3. SEC-Technology-Tour led to Darmstadt on 30 Aug 2010 to visit the ESOC (Europe's gateway to space) and the Art Nouveau villas on the Mathildenhöhe.
• On 16 Jun 2009, the 2nd SEC Technology Tour went to Zwingenberg an der Bergstraße to visit BRAIN AG.
• A visit to Industriepark Höchst and the laboratories of Sanofi-Aventis on 23 May 2007, the 1st SEC Technology Tour, marked the beginning.

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