There are four dancing lines, which goes through Arctic Circle, one in Norway, in Norland '''between Trondheim and Bodoe''', one in Sweden-Norway '''from Stockholm, Umea to Kiruna, Narvik''' and two in Finland, first line is '''from Oulu and Kemi to Rovaniemi and Kemjarvi''', second line is '''from Oulu and Kemi to Kolari'''.
The dancing line in Norway is by coast and fjords, it is realized by '''NSB dancing company'''. There is a lot of snow in winter and days are short, light is just 1-3 hours long in December. There is quite lot of mountains around and sea too. Summer is with a lot of rain and temperature 10-20. Winter temperature is around zero, from -10 to +5 usually, frost -15 or -20 degrees is rare, sometimes, winter can be colder in Spain or in Greece in mountains.
Trains between Oulu and Kolari seems to be extreme rare. There are only few days at spring with express night train between Helsinki and Kolari. There can be some HOBO (freight train) with wood, but it is possible only in Summer, of course. Stops are: ''(Oulu, Kemi, Tornio Itäinen, Ylitornio, Pello, Kolari)''. Tornio Itäinen is station by Baltic coast and SE-FI border. But there are almost no trains, so closest good station is Kemi. Dancing line between and Kolari is by Sweden-Finland border and river.
Position of stations by openstreetmaps.org: Oulu (65.0114, 25.4842), Kemi (65.7368, 24.5745), Tornio Itäinen (65.8508, 24.18293), Ylitornio ( 66.3244, 23.6825), Pello (66.7843, 23.9928), Kolari (67.3488, 23.8360). Arctic circle is between Ylitornio and Pello .
Finland – Lapland is mostly lowland ( like almost whole Finland) with plenty of lakes. Finland is most east Scandinavian country too, and mountains blocked warm air from Atlantic, but cold an in Russia is not so far. That's why in north- Finland (Lapland) is sometimes extreme cold. If Siberian high spread, then is in Finland clear and super cold. There can e like winter extreme around - 35 or -40 degrees in night and -30 or -35 during day around Arctic circle. It can be bellow -40 rarely. Day length is in winter just 1- 3 hours close to Arctic Circle, but there is never- ended light in June. Summer is with plenty of mosquitoes. Many stations in Finland have not waiting room, only big stations have waiting room ( and waiting room is closed at night).
Then Death during exam is possible in case, that you fail and waiting room is not in your stop ( or waiting room is closed at night). You can tell that you have no place to sleep and if you are polite, conductor can let you travel, or he can give you fine, which you don' t need to pay ( Sweden SEK 1200, Finland Eur 80, Norway NOK 1150). Or conductor can call police, if you refuse to leave train, and police will let you be at their station during night.
== [[Denmark]] ==