Combine all ingredients except soda water in pitcher. Stir well. Refrigerate for 2-24 hours to allow flavors to meld. Add soda water if desired and serve with or without the fruit pieces, in glasses garnished with small clusters of grapes.
Nutritional Stats: 1/2 cup serving: Calories 146; Protein 1g; Fat less than 1g; Calories from Fat 3%; Carbohydrate 21g; Cholesterol 0mg; Fiber 1g; Sodium 6mg.