Beach Party

Fill a cocktail shaker halfway with ice cubes.

Pour 1¼ oz of rum, 1 oz of pineapple juice, and 1 oz of orange juice into the shaker.

Shake vigorously for 10-15 seconds until the exterior of the shaker becomes frosty.

Strain the mixture into a glass filled with fresh ice cubes.

Slowly pour 1 oz of grenadine down the back of a bar spoon so it sinks to the bottom, creating a layered effect.

Stir gently once or twice to blend the layers slightly if desired, and serve immediately.