The cold nights and warm days of early spring bring the sap run that produces Maine’s sweetest resource — maple syrup.

The state’s maple producers are gearing up for Maine Maple Sunday, which will be observed this year on March 28. Maple syrup producers around the state will open the doors of their sugarhouses to the public. It is a chance to see firsthand how 40 gallons of maple sap are turned into one gallon of golden delight.

Most sugarhouses will offer tastings and live demonstrations of how syrup is produced, from tap to table. Many offer a variety of other treats and activities, including syrup on pancakes or ice cream, sugarbush tours, sleigh or wagon rides, and more

A complete listing of sugarhouses in Maine that will participate in Maine Maple Sunday is available at getrealmaine.com.