The ninth conference of the "EUROPE-INBO" group was held in Oporto, Portugal, from 27 to 30 September 2011, at the invitation of the ARH Norte (Administração da Região Hidrográfica do Norte/ River Basin Administration of Northern Portugal).
The "EUROPE-INBO 2011" conference gathered 254 participants, representatives of national administrations and basin organizations as well as NGOs and companies from 46 Countries (list of countries in Annex).

As the conference was taking place six months before the 6th World Water Forum to be held in Marseilles in March 2012, special attention was paid to solutions proposed under the European Regional Preparatory Process.
The "EUROPE-INBO 2011" meeting was jointly organized with the 9th General Assembly of the Mediterranean Network of Basin Organizations (MENBO) that promotes basin management in the riparian Countries of the Mediterranean.

The "EUROPE-INBO" group of European basin organizations for the implementation of the Water Framework Directive (WFD) was created in Valencia, Spain, in 2003, and gathers European member organizations and observers of the International Network of Basin Organizations (INBO), the European Union and of candidate and neighbor countries concerned.