The 13th Conference of the "EUROPE-INBO" group, which took place in Thessaloniki, Greece, from 21st to 24th October 2015, gathered 193 participants, representatives of national administrations and basin organizations as well as of NGOs, companies, international and regional organizations, coming from 32 countries. The work of the 13th "EUROPE-INBO 2015" international conference was organized around four roundtables dedicated to current events in the practical implementation of the WFD and other European water-related directives. Please find the Programme, Declaration, Presentation of the meeting.