The Arctic is full of amazing natural phenomenon all serve a purpose be it as a navigational aid or a reward for travelling to such a remote area.
Ice blink is a white light seen on the horizon, especially on the underside of low clouds, resulting from reflection of light off a field of ice immediately beyond. The ice blink was used by both the Inuit and explorers looking for the Northwest Passage to help them navigate safely.
Water sky forms close to icy areas and is when light hits the seas and some of it bounces back up on to the bottoms of low lying clouds and causes a dark spot to appear underneath the clouds. These clouds may be visible when the seas are not and can alert one to the general direction of open water.
Fata Morgana occurs when an image of an object appears above the actual object, due to the refraction or bending of light waves from the object down toward the eyes of the observer. Downward refraction occurs because air closer to the ground is colder, and therefore more dense, than air higher up.
Other optical and acoustic phenomena observed in the Arctic include the Aurora Borealis, Halos (sun dogs and fog bows) and Optical Haze.