The Hellenic Navy Hydrographic Service (HNHS) participated at the Map Exhibition of the 28th World Mapping Conference that was held in Washingtonon 2-7 July 2017.

The Hellenic Navy Hydrographic Service (HNHS) participated in the 20th session of the Mediterranean and Black Seas Hydrographic Commission (MBSHC) which was conducted in Herceg Novi of Montenegro, 04-06 July 2017.