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7

As gerrit notes, swimming in lakes is common in Scandinavia, and there's not a lot of fauna in them that could even potentially be harmful. Some lakes in southern Sweden apparently do have leeches, which can attach themselves to exposed human skin or, in some cases, to the insides of body cavities. If you were planning to swim in a leech-infested lake (a ...


7

Swimming is a popular summer pas-time in Sweden and Finland. In rural areas, it's still common for schools to have swimming lessons outside, in lakes. I'm pretty sure there's no risk from fauna in Swedish lakes. If you go too far north, you could risk hypothermia ;).


5

The topics of navigation and cartography are two sides of the same coin, and there are entire books written about each. It is interesting to study the history of cartography because it very graphically shows the corresponding improvements in navigation over time. In order to make an accurate map, you need to know first where you are making your ...


1

One of the primary techniques is the use of Dead Reckoning although the secrets of long distance Polynesian maritime navigation still remain a mystery despite huge evidence of their wayfinding ability. The easiest way for maritime navigators to map locations was to build on the predecessors knowledge through the use of the Periplus. It served the same ...



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