Exchange of Letters constituting an Agreement between the Kingdom of the Netherlands, on behalf of Curaçao, and the United Nations Educational, Scientific and Cultural Organization (UNESCO) concerning the Seventh Session of the Intergovernmental Oceanographic Commission (IOC) Intergovernmental Coordination Group for the Tsunami and other Coastal Hazards Warning System for the Caribbean and Adjacent Regions (ICG/CARIBE EWS-VII), Willemstad, Curaçao, 2 to 4 April 2012