Södertörn

The highest point on Södertörn is Tornberget in Haninge at 110.9 metres (363.8 feet) above sea level.

The southernmost parts of Södertörn were connected to Stockholm in 1901, when the Nynäs Line was opened.

The authority justified its decision by saying that Södertälje Canal counts as so-called "surface water" and that according to the new definition, Södertörn is therefore "unequivocally" an island, surrounded by Södertälje Canal, Mälaren and the Baltic Sea.

According to SCB, Södertörn was, "if one were to stretch it, probably an island already even with the previous definition, because historically there has been water in the form of a strait or similar on the site".

[4] The reason SCB added this, is that a large part of southern Sweden is divided from the rest of the Scandinavian Peninsula by Göta Canal, so it would also now be an island according to the last explanation.