Why chiller? I live and work about 5 blocks away from Lake Superior, a.k.a. Gitche Gumee. It's a well-known fact that the lake is our natural air conditioner. HERE is a link to more info about Lake Superior. Our city of Duluth, Minnesota is beautiful all year long. We celebrate all four seasons with outdoor activities including hiking, water sports, hockey, cross country and downhill skiing, fishing, hunting, and more. What do you do in your city? Tell me about your outdoor recreation.