Get tickets to see a game at Hagongda Stadium. If there's nothing on while you're in the area, you might like to check if they give a tour of the facilities.
You'll soon find out why this Nangang Qu sporting facility is visited by many travelers. If you're searching for other things to see here, Saint Sophia Church, Heilongjiang Provincial Museum, and Harbin Ice and Snow World are in this area too. They won't take you long to reach from Hagongda Stadium.
