Photo: @ChrisBurkard We sat and watched the emerald green Northern Lights dance across the sky high above Gásadalur waterfall. There's something about looking up at the silent fireworks that completely humbles you. Sitting on the edge of the massive cliffs listening to the ocean and waterfall is something I'll never forget. The best northern lights viewing happens typically on the coldest night during late fall to spring months. The further you are from a city .. the better.