Three researchers involved in M-TROPICS CZO went to South Korea from November 26 to December 6 within the French-Korean Campus France-funded project « Investigating fate and transport of microbial pathogens in freshwater-environment ». Emma Rochelle-Newall (IRD – iEES Paris), Olivier Ribolzi (IRD – GET), and Laurie Boithias (CNAP – GET) met Prof. Yongeun PARK at Konkuk University in Seoul, and Prof. Kyunghwa CHO and his EM2 research group at UNIST, in Ulsan. On-going collaborations on bacteria transport and fate modelling in tropical rivers were strengthened and more collaboration on microbial diversity has been considered for the future. Thank you so much for the very warm welcome !