Rudi
If you're looking for hidden bars in Belfast, Rudi has you covered. Head underground at sister restaurant Margot and you'll stumble upon this Art Deco-furnished joint which serves lip-smacking 'disco drinks' like Harvey Wallbanger (Ketel One vodka, Grand Marnier, spiced syrup, egg whites, and Three Cents mandarin and bergamot soda) and spritzes, including a signature number made from Crème de Rhubarbe, Trementi Italiano rosado, prosecco, and Schweppes soda water.