Prepare the fruit: Rinse the grapes and blueberries under cold water. Halve the grapes, setting aside a few whole for garnish if desired.
Combine: In a large pitcher, add the halved grapes, blueberries, honey (or agave), turmeric, and cinnamon.
Mix: Pour in the coconut water and cold water. Stir gently to combine all the ingredients, ensuring the honey dissolves completely.
Rest: Allow the mixture to sit in the refrigerator for at least 15 minutes to let the flavors meld.
Serve: Fill glasses with ice cubes. Pour the iced tea over the ice, ensuring each glass receives a good amount of fruit.
Garnish: If desired, add a few whole grapes and blueberries on top, and garnish with fresh mint leaves.
Enjoy: This tea can also be enjoyed warm. Simply heat it gently on the stove before serving.