In a blender, combine bananas, sugar, and 3 cups water. Blend until smooth.

Pour into a large bowl and stir in pineapple juice.

Blend in orange juice concentrated, lemonade concentrate, and 3 additional cups of water.

Divide into three gallon size Ziploc bags and freeze until solid. (At least 1 full day)

Remove containers from freezer 30 minutes before serving.

Squeeze bags to separate slush into smaller clumps.

Place slush in punch bowl or large pitcher and pour in 1 2-liter of ginger ale for each banana slush portion.