Add all measured ingredients into a cocktail shaker and shake ingredients for at least thirty seconds (watering down this drink a little bit is a good thing). Serve in a pint glass, a collins glass or a hurricane glass. Add a straw and garnish with a pineapple wedge or lime/lemon slice.
If almond syrup is not readily available you may use the following
substitute: 1/2 oz. of simple syrup and 1/2 oz. of almond liqueur. You can also use Mount Gay or Appleton Estate rum if Myer's is not available.