Begin by pouring the cranberry juice and fresh orange juice into a large pitcher. Use a spoon to stir the juices together until fully combined.
Next, carefully add the sliced strawberries, diced apples, and sliced oranges to the pitcher, ensuring they are evenly distributed within the mixed juices.
To infuse warmth and spice, add the cinnamon stick to the mixture. Gently stir the contents, allowing the cinnamon to release its flavors.
If you have a sweet tooth, now is the time to stir in honey or maple syrup, tasting as you go to achieve your desired level of sweetness.
Cover the pitcher and refrigerate the sangria for a minimum of 2 hours.
Once ready to serve, carefully pour in the sparkling water or soda just before pouring. Gently stir to ensure the fizz is well distributed throughout the sangria.
Serve the sangria in glasses filled with ice, and tuck a few fresh mint leaves into each glass for a pop of color and freshness.