Chill all liquids and glassware ahead of time to keep the punch bright and cold.
Juice the pink grapefruit and lime, removing seeds and strainer pulp.
In a large pitcher or punch bowl, combine cranberry juice and grapefruit juice.
Add orange liqueur or orange juice and stir to blend flavors evenly.
Sweeten with simple syrup or honey syrup, tasting and adjusting for desired sweetness.
If making an alcoholic punch, add vodka or light rum and stir gently.
Add a block of ice or large ice cubes to the bowl to chill without diluting quickly.
Pour in chilled sparkling water or club soda just before serving to preserve fizz.
Garnish with lemon and lime slices and scatter fresh berries in the punch for visual appeal.
Serve in chilled glasses over ice, finishing each glass with a small citrus twist.