Establishing National Parks in the wadden region is a different story than for the rest of the Netherlands. As stated in the Structure Scheme Green Areas, because of its character and dimension, the wadden region is not the same as the rest of the developing National Park network in the Netherlands, when considered (inter)nationally with its extremely high nature and landscape values. In addition, a large part of it is already protected via the PKB Wadden Sea and the Nature Protection Act. In fact, the Dutch wadden region forms one interlinking entity with the German and Danish wadden region. The largest part of the German wadden region is National Park. Over the long range, advising to give the entire wadden region an international park status will be considered.
Schiermonnikoog took more than five years between being a 'national park in formation' and a true National Park. The residents were afraid that their freedom would be infringed upon. They expected that large parts of the island would no longer be trespassable. In addition, the residents were not ready to accept the new managers of the island. The same problems played a role on Texel. The plans to give the dunes the status of national park began around 1985. It remained a plan, partially due to the large amount of opposition among the local residents. In April 1994, the temporary committee for National Parks visited the wadden island again. Two months later, the committee decided to give the dunes of Texel the highest priority and the National Park Dunes of Texel was opened in 2002.
The situation on Schiermonnikoog proves that a national park offers protection. According to the managers (Natuurmonumenten), 27 bird species that were on the Red List for vulnerable and rare birds were nesting in the park in 1995. For example, the spoonbill, great ringed plover, great bittern, redshank and sedge warbler. Many Red List species are observed in the coastal regions and damp dunes of the Wadden Islands. Schiermonnikoog is one of the few areas in Europe where natural dune formation is still taking place. The region is 5400 hectares large and consists of dunes and salt marshes. Schiermonnikoog is an important rest and nesting area for birds.
Should the entire Wadden Sea become a national park, then the Temporary Committee for National Parks advises close agreements with the German provinces along the wadden coast and Denmark are necessary. In that way, the entire Wadden Sea in each country would be protected in the same manner.