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.
Makes: 6 servings.