1In 1-quart saucepan, heat water to boiling. Stir in rice. Reduce heat to low; cover and simmer 10 minutes. Uncover; cool 15 minutes. Refrigerate at least 1 hour or until cold.
2In medium bowl, mix rice, yogurt and reserved pineapple juice. Cover; refrigerate 1 to 2 hours to blend flavors.
3Cut kiwifruit slices into fourths. Gently stir kiwifruit, pineapple, mango and tuna into rice mixture. Sprinkle with coconut. Store covered in refrigerator.