2 oz of white rum (or Light Rum)
2 oz of Dark rum
1 oz of Triple Sec
1 oz of Orange Juice
1 oz of Pineapple Juice
1 1/2 oz of grenadine syrup
1 splash of club soda (or clear soda)
1/2 oz of amaretto almond liqueur (or almond liqueur)
Stir all ingredients together in a highball glass with a few ice cubes, and serve.