Northern Lights Holidays for families, groups, singles and couples in Norway, Iceland and Greenland. On a fundamental level, the northern lights are quite simple to explain. The lights come at night when the sky is dark. It’s like a celestial ballet of light dancing across the night sky, with a colour palette (green, pink, violet) obtained from a cool fashion show from the 1980s. You can see pictures or videos of it, but only those lucky enough to experience it first hand can fully comprehend the almost divine attraction that the northern lights possess. Northern Lights Holidays.