Midnight sun - Summer activity in Tromso As summer strategies, there's a certain holy phenomenon that awaits in the Polar circle: the Midnight Sun. Tromsø, located in the heart of this magical area, comes to be a stage for this breathtaking sensation, where the sun does not set for months, casting an angelic radiance over the city and the surrounding landscapes. With Arctic Cruise in Norway, you can study this natural wonder, experiencing it from the land, sea, or in lasting style.