The Wadden Sea, a UNESCO World Heritage site in Denmark, Germany, and the Netherlands, recognized in 2009 with expansions in 2011 and 2014, is Europe’s largest tidal flat system, stretching along the North Sea coast. Its dynamic mudflats, sandbanks, and salt marshes support millions of migratory birds and marine life, reflecting a globally unique coastal ecosystem. This transnational site showcases the region’s natural heritage, preserved through cooperative efforts, highlighting the interplay of tides and biodiversity.

Copyright © 1992 - 2025 UNESCO/World Heritage Centre. All rights reserved.