Valdemarsvik is a locality, situated alongside the bay of Valdemarsviken which connects to the Baltic Sea. It is the seat of Valdemarsvik Municipality which is located in Östergötland County, Sweden. The coastal area is a popular summer destination, particularly with Swedish tourists. History. Valdemarsvik is surrounded by water. However, after the end of the last glacial period, it lay beneath the sea level. As a result of post-glacial rebound, the water withdrew as the land rose. The resulting appearance of fertile soil drew settlers in the Bronze Age, around 1500 BC.
https://en.wikipedia.org/wiki/Valdemarsvik