In a medium saucepan, combine 1 cup of water, sugar, and peach slices. Bring to a gentle boil over medium heat, stirring until sugar dissolves. Reduce heat and simmer for 5 minutes, crushing peaches with a fork.

Remove from heat and let the peach syrup sit for 30 minutes to allow flavors to meld. Strain through a fine mesh sieve into a bowl, discarding solids.

In a large pot, bring 6 cups of water to a rolling boil. Cool for 5 minutes and add tea bags. Steep for 5-6 minutes.

Remove tea bags and let tea cool to room temperature. In a pitcher, mix cooled peach syrup with brewed tea. Refrigerate for 1 hour to chill.

Serve over ice and garnish with peach slices or mint leaves.