Overview: Lake Shumarinai, located about 200 kilometers north of Sapporo. In this episode, we will introduce you to the wonder that is known as the coldest lake in Japan. Fishing for Japanese smelt is the activity to try when visiting the lake during winter. Our program host will race over the vast snowfields on a snowmobile with a guide, and will open a hole in the ice to catch Japanese smelts. Later, we show you precious footage of creatures living there during severe cold weather.