Those who today hear the name Djurhamn are maybe first thinking of a summer resort place with sunbathing, swimming and recreational boating activities. Djurhamn has an interesting and fascinating history well intertwined with the history of Sweden. The interesting history was exposed by the Stockholm Sport Diving Club which, during the summers of 1964 and 1965, brought up a large number of finds from the bottom of Djurhamn. The findings could essentially be dated to be in the in the period 1500s to 1700s. Like other parts of the East Coast Djurhamn was hit in "Russian raids" in the early 1700s. The known meetings of warships during the Vasa era and the history of naval ship Riskswasas fate also reflects the interesting parts of Djurhamn history. While working on this, a number of dives were made at the bottom of the basin in Djurhamn. Two side-scan surveys have also been conducted. Overall, this has not resulted in any change of the picture of what's on Djurhamns bottom. A previously unknown wreck that lies south of the cemetery have, however, been located based on information from the public. The finds from the dives during 1964 and 1965 talk about food and drinks, cooking utensils, three-leg pots and bottles speaks their language. Even earlier dated bargain materials speak the same language. It is a place where everyday objects leave imprints on the bottom along with the testimony of a brickyard, which flourished for a short period. Which traces have been left from the naval activities? Practically none. On land there are no naval monuments. The objects which were brought up at the 1960 dives were almost entirely attributable to the applications connected to cooking. Our modern society is a complex reality. There are homes, workplaces, hospitals, places of entertainment, etc. People are born, grow up, grow old and die. What do we find in the signs of the Djurhamn? Well, a picture that much is a reflection of today's society. Also here you are born grown up grown old and finally dead. Heavy drinking has flourished. In addition to self-household and shipping, there has been brick industry and cholera quarantine. Finally, perhaps Djurhamn over time is best described as farmers, fishermen and hungry sailors’ history more than the history of the fleet in the Vasa kings’ service.

The archipelago at the Swedish Baltic coast belonging to the landscapes Södermanland och Östergötland consists of many thousands of islands today. However, about 10 000 years ago, the first islands broke the sea surface due to the land uplift. Despite of the very exteme maritime environment at that time there exist archaeological remains from the mesolitical period from the first visitors. Since that time the maritime landscape has been used for several reasons, such as providing food, establishing industry, defence and trade. In the viking and medieval age the activity was high in the archipelago. This could only be possible with a safe journey between the islands with help from local fishermen who were the experts of the archipelago and severed as pilots as they know the safe routes and the placenamnes. The intention of this essay is to test if the phenomena called "name user circle" is present along the Swedish Baltic Sea coast of Södermanland and Östergötland. This means that a limitid group of people, geographically located, used the same placenamn for, in this case the placenamne Hamnskär (harbour islet). The frequensy and locality of Hamnskär will be studied as well as the historical och archaeological materiel. Other questions will be answered, such as common factors for Hamnskär, who used them, what were they used for, where did the users come from and who gave the islands their placenamnes. The result of the test is that ten Hamnskär have been found relatively frequently along the tested coast, except outside Södertörns coast, a part of Södermanland. Five "Bodskär" ("hut-islet") were located here. To go fishing in the outer archipelago you need a boat, a harbour and a hut, the use of these islets is the same. Archaeological materiel exits on some islets. The islets were used for fishing and for self-sufficiency. As the fishing was very income-generating a lot of people came to fish, even the Crown and burghers. Some other placenames have been found along the tested coast, Björkskär 18 and Alskär 26. The conclusion is that Hamnskär is a part of a local name user circle.