Sorae Swamp Eco Park is where the sun - dried sea salt was produced until 1997. Currently, it is an outdoor learning place where you can observe aquatic plants, halophytes, and wetland plants inhabiting the coast of Korea while the salt flap is closed. There is also an exhibition hall, a seaside foot bath, and a sun - dried sea salt experience space in the Eco Park. Especially the landscape of the reeds with red windmills is as impressive as many photographers visit.