Buy a ticket to see a game at Sioux Falls Arena. If there's nothing happening while you're there, you might like to check if there's a guided tour of the facilities.
You'll soon see why this Sioux Falls sporting facility is popular with travelers. If you're looking for other things to see here, Denny Sanford Premier Center, Empire Mall, and Falls Park are in the area too. They won't take you long to get to from Sioux Falls Arena.