
Market· Osnabrück
Act2Sustain-Flohmarkt | Act2Sustain flea market
The Act2Sustain flea market, hosted by the HSBI sustainability project's sub-team, takes place on Saturday, 14 November 2026, from 10 a.m. to 2 p.m. in the main building's hallway, offering second-hand items and clothing at fair prices—rain or shine—with the cafeteria serving coffee and snacks.