2 (46 oz.) cans pineapple juice
1 (32 oz.) bottle ginger ale
1 (2 liter) bottle carbonated lemon-lime drink
1/4 c. grenadine syrup
Ice cubes
1 lemon, thinly sliced
1 orange, thinly sliced
Mint sprigs

In punch bowl, mix pineapple juice, ginger ale, lemon-lime drink and grenadine syrup (all chilled). Add ice cubes. Float lemon and orange slices on top. Add mint for garnish.