World Wetlands Day is celebrated internationally each year on 2 February. It marks the anniversary of the signing of the Convention on Wetlands of International Importance (Ramsar Convention) in Ramsar, Iran, on 2 February 1971. The international theme for World Wetlands Day 2009 is "Upstream-Downstream: Wetlands connect us all". This is in recognition of how interconnected we all are within river basins and the impact that activities upstream have on the lower parts of a river catchment. For information on World Wetlands Day events around Australia visit the Water for the Future website.