Ingredients:

  Amount  Measure       Ingredient -- Preparation Method
--------  ------------  --------------------------------
2         ounces        light rum
1         ounce         dark rum
2         ounces        orange juice
2         ounces        pineapple juice
1/2       ounces        lime juice
1/2       ounces        lemon juice
1         dash          grenadine

Preparation:

Pour ingredients together in cocktail shaker. Strain into ice-filled collins or hurricane glass.