About 100 kilometres west of Hamburg lies the almost three square kilometre small inhabited island of Neuwerk in front of the mouth of the Elbe in the Wadden Sea of the North Sea. Politically, the island belongs, along with other islands, to the Hamburg district of Neuwerk of the same name. Already in 1905 Neuwerk became a resort and seaside resort. The 40 inhabitants live from agriculture and from tourists, who appreciate the peace, walks in the sea breeze and the vastness of the mud flats and the sea. Five restaurants, an old merchant's shop, the show collection in the "Haus Bernstein" and the new "Nationalpark-Haus Neuwerk" are among the attractions of the island. The Wadden Sea stretches over 500 kilometres along the coasts of the Netherlands, Germany and Denmark. The German-Dutch part, which covers almost 10,000 square kilometres, has been a World Heritage Site since June 2011 and is thus on a par with other world-famous natural phenomena such as the Grand Canyon and the Great Barrier Reef.