Must do in Sweden. VALDEMARSVIK highlights

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.
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. The surrounding archipelago has had a bloody history: remains of shipwrecks at the bottom of the sea and Viking era remnants witness of battles from that time. Industrialization occurred during the 1630s, when Valdemarsvik became a trade port for copper and leather; one of Sweden's largest tanneries was located in Valdemarsvik. The town's name was first mentioned in 1664.