Vadehavet National Park, located in Denmark, is a UNESCO World Heritage site known for its unique coastal landscapes and rich biodiversity. The park encompasses the Wadden Sea, which is the largest unbroken system of intertidal sand and mud flats in the world. It serves as a crucial habitat for various species of birds, fish, and marine life. The park is also famous for its tidal phenomena, where the sea recedes to reveal vast areas of mudflats. Visitors can explore the park through walking trails and guided tours, making it an ideal destination for nature lovers and birdwatchers alike.