Revontulet

Definition

The Finnish word for the northern lights, or aurora borealis. They are glowing displays caused by charged particles from the sun meeting the upper atmosphere, and northern Finland is a popular place to watch them. No one can promise a sighting, because it depends on solar activity and clear, dark skies. Staying several nights and remaining flexible improves your chances without guaranteeing anything. See also: kaamos, Lappi, and the guide Lapland and the Northern Lights: A General Guide.