Both the Northern and Southern coastlines of the Korean peninsula are rough, defining a long gulf line that results into a large tide-range.

The Korean coastline resembles only 1 of the 5 types of beach areas. These include the Eastern Coast of Canada, the Northern and Eastern coasts of the USA and some parts of the Amazon River.

The coastline that forms part of Suncheon Bay has a history of about 3,000 years and covers a 26.4 square kilometer area. Here, a variety of different species co-exist, and migratory birds can find sanctuary in an international preservation area.