The Dollart is a unique tidal estuary located on the border between Germany and the Netherlands. It is formed by the confluence of the Ems and Weser rivers, creating a shallow bay that is rich in biodiversity. The area is known for its mudflats, which are important habitats for various bird species and marine life. The Dollart is also significant for its historical context, as it was the site of the Dollart Flood in 1509, which dramatically altered the landscape. Today, it serves as a natural reserve and is popular for recreational activities like birdwatching and hiking, attracting nature enthusiasts from both countries.