On Wednesday afternoon at 16:30, there will be a guided walking tour through the former government district. The tour lasts around two hours. As it is outside, please dress appropriately. The tour starts at the Marriott Hotel (Platz d. Vereinten Nationen 4, 53113 Bonn). To get there, you can take trams 66/68 from Robert-Schumann-Platz to Heussallee/Museumsmeile, which is only three stops.
Following this, at 19:30, we will have an external dinner at Gasthaus im Stiefel (Bonngasse 30, 53111 Bonn). To get there from the Marriott hotel, you can take tram 66 from Heussalle/Museumsmeile to Bertha-von-Suttner-Pl./Beethovenhaus, which is seven stops.
For more details about the connection, refer to the webpage of the Bonn transport services. It is probably reasonable to buy group day tickets if you do not have a Deutschlandticket.