The northern lights tour in Iceland takes you to see a spectacular natural phenomenon which happens during the winter months. The northern lights, also known as Aurora Borealis, are caused by the interaction of particles from the sun with the upper atmosphere near the North Pole. Northern lights in Iceland are visible during the winter months, from September to April. The locations visited during the northern lights tour vary from day to day depending on weather conditions. Because this tour is weather dependent, sightings are not guaranteed. However, if you don‘t see any northern lights during this tour, you are welcome to join the tour again, free of charge.