CWSS and directors and managers of the German Wadden Sea National Park Administrations met for annual "Jour Fixe".
On 13 November 2018, the Wadden Sea Board (WSB 27) was held in Copenhagen.
Manager mariner Welterbestätten und Meeresmüll-Experten aus 11 Nationen diskutierten Auswirkungen von Meeresmüll für marine UNESCO-Welterbestätten.
The Trilateral Seal Expert Group (TSEG) published report “Aerial surveys of Harbour Seals in the Wadden Sea in 2018”.
On August 20 and 21, 2018, the heads of the secretariats of the European Water Commissions and Conventions and the Trilateral Wadden Sea Cooperation gathered for their annual meeting at the CWSS premises in Wilhelmshaven.
Stakeholders from the trilateral Wadden Sea community met on 30 August 2018 in Wilhelmshaven to discuss sediment dynamics and management.
On 16 June 2017, the three national delegations as well as advisors from the NGO Waddenvereniging and the Wadden Sea Forum met at the city hall of Harlingen, Netherlands, for the 20th meeting of the Wadden Sea Board (WSB 20).
On 26 - 27 September 2017 a workshop on "Best practices of Climate Change Adaption in the Wadden Sea Region" will be held in Wilhelmshaven.
The 19th meeting of the Wadden Sea Board (WSB 19) took place at the Common Wadden Sea Secretariat (CWSS) in Wilhelmshaven, Germany, on 24 March 2017.