This southeast Minnesota town offers owl prowls, hooting contests, pellet dissection, live-owl programs and children's activities.
The Lake Superior festival features fat-bike tours, a poker run, a candlelight walk, polar plunge and penguin-egg hunt.
The National Eagle Center holds live-bird programs and nature presentations weekends in March, when bald eagles migrate northward along the Mississippi.
At nature centers around the region, tour the sugarbush and learn how to tap trees and boil sap. Then, eat a pancake breakfast with real maple syrup.