Step 1: Layer the base
Pour 1 oz grenadine into the bottom of a tall glass. Add a handful of ice cubes slowly and carefully to keep the red layer from mixing.

Step 2: Mix the tropical middle
In a cocktail shaker, combine 1 oz pineapple rum, 2 oz pineapple juice, 1 oz sweet and sour mix, and 2 oz guava juice. Shake gently to blend.

Step 3: Build the middle layer
Slowly pour the tropical juice mix over the back of a spoon so it floats on top of the grenadine, creating a beautiful layered transition.

Step 4: Float the blue curaçao
Very gently pour 1 oz of blue curaçao over the back of a spoon on top of the drink. This will form a vibrant blue layer resembling a tropical sky.

Step 5: Garnish
Top with a pineapple wedge, cherry, and a fun umbrella for full tiki-cocktail flair.