The North Sea islands are known for their quiet atmosphere and miles of sandy beaches. In addition, there is a varied natural landscape of gently undulating dunes, extensive salt marshes and the impressive Wadden Sea. Seals sunbathe on the sandbanks, and seabirds such as gannets and gulls can be easily observed foraging in the mud. The diversity of the islands, which offer both recreation and leisure fun with hikes, bike tours and water sports, allows every traveler unique vacations.