What is "bamseom"

Bamseom is a pair of islets in the River Han in Seoul, South Korea. The uninhabited islets, with a total area of and length of , are located between the larger island of Yeouido, to which they were once connected, and the north shore. They remain connected to one another by a narrow strip of sedimentary silt. Seogang Bridge passes directly over the western islet, though there is no access available, as the islets have been left as a natural sanctuary. There is, however, an observation point for bird-watching. Migratory birds use the islets often and among the birds which can be seen are mallards, great egrets, mandarins, common kestrels and spotbills.