2 (46-oz) cans unsweetened pineapple juice
2 2/3 c. orange juice
1 1/3 c. lemon juice
2/3 c. lime juice
2 c. sugar
2 bottles (1 qtsp.) ginger ale, chilled
2 bottles (1 qtsp.) plain carbonated water, chilled

Combine fruit juices and sugar; chill thoroughly. Pour over large cake of ice in punch bowl. Pour ginger ale and carbonated water slowly down side of bowl. For trim, float twists of sliced orange and sprigs of fresh mint on block of ice.