This time of year in Duluth, along the seven miles of sandbar on Lake Superior known as Park Point, wave action forms amazing ice formations that often have an alien feel to them. Each storm adds its contribution and the ice builds in layers outward from the beach. Depending on conditions, there will be piles of ice rising high above the water, ice caves and blowholes. Caution is advised when exploring these formations as the lake is always in motion and you never know when one of the chunks may break off or split. Also, the spaces between the heavier layers may have thinner ice.