The eastern tip of Hokkaido facing the Sea of Okhotsk, the Shiretoko Peninsula, is hit by drift ice from February to March every year. The nutrient-rich drift ice is the source of the rich aquatic resources of the Shiretoko Peninsula, which has been designated as a World Heritage Site. However, due to global warming, the amount of ice that reaches the shore is decreasing year by year. I can only hope that this wonderful sight can be seen forever.