Jamaican Crow

1 1/2 oz light rum
2 oz club soda
1/2 oz grenadine syrup
1 oz lime juice

Fill a collins glass almost full with ice, and your shaker half full with ice. Pour all ingredients except soda into shaker and shake well. Strain into glass. Add the carbonated water (club soda) and stir well. Garnish with an orange slice and a maraschino cherry if available.