Place the pineapple juice, orange juice, passion fruit juice, sparkling soda, and sparkling water in the refrigerator until thoroughly chilled.
Pour the pineapple juice, orange juice, and passion fruit juice into a large punch bowl or drink dispenser.
Pour in the fresh lime juice.
Stir gently and taste the mixture. If you prefer a sweeter punch, you can add a small amount of grenadine or simple syrup.
Just before serving, add the chilled lemon-lime soda and sparkling water.
For a party, you can also freeze pineapple chunks, orange slices, or berries into ice cubes and use them instead of regular ice.
Arrange the fruit so that it floats attractively on the surface.
Pour the punch into tall glasses over ice.
Pour the punch into tall glasses over ice.