Pineapple-Ginger Punch

In a small saucepan combine the water, sugar, and ginger. Bring to boiling, stirring until sugar is dissolved; reduce heat. Simmer, uncovered, for 10 minutes. Cool ginger mixture to room temperature. Strain ginger mixture through a fine-mesh sieve into a bowl.* If desired, add rum. Cover with plastic wrap; chill for at least 2 hours.

In a large punch bowl or pitcher combine the chilled ginger mixture, pineapple juice, lemon juice, and lime juice. Stir in club soda. Add ice cubes and lime slices and/or pineapple wedges.