Chill your bucket or pitcher. Pop it in the fridge or rinse with very cold water. Cold vessels keep ice from melting too fast.
Fill with ice. Add ice until the container is about two-thirds full. You can always add more later.
Add the spirits. Pour in 1 cup light rum, 1/2 cup coconut rum, and 1/4 cup spiced rum (optional).
Adjust the spiced rum to taste.
Add the liqueur. Stir in 1/4 cup blue curaçao or orange liqueur. Blue curaçao gives a bright beachy color; orange liqueur keeps it classic.
Layer the juices. Add 2 cups pineapple juice, 1.5 cups orange juice, and 1 cup cranberry juice. Stir gently to combine without losing the chill.
Brighten with lime. Squeeze in 2 fresh limes (about 1/4 cup).
Taste before sweetening.
Sweeten only if needed. If you prefer a sweeter cocktail, add 1–2 tablespoons simple syrup. Stir and taste again.
Top with bubbles. Pour in 1–2 cups club soda for a lighter finish, or use lemon-lime soda if you want extra sweetness and citrus.
Garnish generously. Add orange slices, lime wheels, pineapple chunks, and cherries. Tuck in a few umbrellas for fun.
Serve immediately. Slip in long straws.
This recipe makes about 6–8 drinks, depending on pour size and ice.