To see Northern Lights is on everyone's bucket list! Don't waste time wondering how cool it is and just travel now to hunt down the magic. For the clearest view go to Abisko that is famous for its Sky Station. Surrounded by mountains, the spot is more than fantastic.
Dress properly, though, it is extremely cold! If you are not in the mood of travelling that far, you can go to Kiruna in Swedish Lapland, where the chances of clear skies are a little bit smaller, but which offers plenty of winter activities, including dog sledding!