In a large punch bowl, stir together the pineapple juice, cranberry juice, orange juice, and lemon juice.

Refrigerate until fully cold, at least 1 hour, if the juices weren't already chilled.

Right before serving, pour in the chilled ginger ale and stir gently.

Add ice or a decorative ice ring to the bowl.

Float orange slices and cranberries on top, then ladle into glasses to serve.