Aurora Borealis, also known as Northern Lights can normally be seen between September and March under a cloudless sky where there are no artificial lights.  The northern lights display may vary in duration, colours, form and intensity.  Each Aurora Borealis is always different from the previous one.  Aurora Borealis occurs in the Earth's atmosphere when the solid wind particles mix with the air molecules. When this occurs, the energy produced is converted to light thus it produces the Northern Lights.

* The countries in the Arctic and sub-Arctic regions are the best spots to witness Aurora Borealis. These countries are Norway, Sweden, Finland and Iceland.

* The phases of the moon also has an effect on how much Aurora Borealis you can see. During full moon, its light greatly counteracts the lights display.

* In Sweden, tourists are encouraged to stay at The Ice Hotel where they also offer various activities other than sighting the Northern Lights.

* Blue Lagoon in Iceland also offers horseback riding and visiting some geothermal sites.

* Finland has log cabins where tourists can stay and bask in their own private saunas after a day of skiing.

* Norway has the widest open skies perfect for the visual display of lights. 

When preparing for the display, it is best suggested to wear boots since you can spend a long time waiting for the lights to appear.