1. Bring 4 cups water to a boil in a medium saucepan; add tea bags and mint leaves. Boil 1 minute; remove from heat. Cover and steep 10 minutes.
2. Discard tea bags and mint. Pour into a 1-gal. container; add peach nectar, lemonade concentrate, and Simple Sugar Syrup. Cover and chill 8 to 24 hours.
3. Pour chilled tea mixture into a punch bowl or pitcher. Stir in ginger ale and club soda just before serving. Garnish, if desired.