Contributor and pilot AndrewAchter used a drone to capture a great winter scene on Lake Superior in northern Minnesota. The lake, which has a surface area of 82.1k square km (around 31.7 square mi.), is the largest freshwater lake in the world by that measure. The northernmost of North America's Great Lakes system, much of Lake Superior freezes during the bitterly cold winter months. Before it freezes, the vapor given off by the water causes the phenomenon you'll see in the video called "sea smoke".