Zwin Nature Park, a publicly owned entity based in Belgium, was founded in 1952, employs approximately 30 individuals, and reported $3.4M in revenue as of 2023. Functioning as a coastal nature reserve in Knokke-Heist, Belgium, also known as an "international airport for birds," the park offers an interactive, educational experience of tidal marshes and salt flats. It features a visitor center, a 1.7 km hut trail for birdwatching, a barefoot path, and panoramic views of the North Sea.