Fruit juice nectars are blends of fruit puree, water, and cane sugar. You can find them in a variety of flavors in the fruit juice aisle of the supermarket.
Bring 4 cups water to a boil in a medium saucepan; add tea bags and 2 cups mint leaves. Boil 1 minute; remove from heat. Cover and steep 10 minutes.
Remove and discard tea bags and mint. Pour into a 1-gal. container; add peach nectar, lemonade concentrate, and Simple Sugar Syrup. Cover and chill 8 hours or overnight.
Pour chilled tea mixture into a punch bowl. Stir in ginger ale and club soda just before serving. Garnish, if desired.