Combine bananas and 1/4 cup orange juice in processor and puree. Transfer to pitcher. Combine pineapple chunks and 1/4 cup orange juice in processor and puree. Transfer to same pitcher. Mix in water, syrup, grenadine, lemon juice and 1 1/2 cups orange juice.
Can be made 6 hours ahead. Chill. Stir well before serving.
Pour fruit mixture into tall glasses. Garnish with strawberries and serve.
Recipe courtesy of Sarabeth's