This is an oldie, but a goodie. Citrus flavoured cocktails always seem to be popular, whatever the season.
2 oz of Gin
1 oz of Orange Juice
1/2 oz of Triple Sec
1/2 oz of Superfine Sugar
Put all the ingredients into a cocktail shaker with ice.
Strain and pour into a cocktail glass.
Lightning Ridge Opals
Coober Pedy Opals