Located at 621 Manhattan Avenue at the back of the Wanpaku Ramen restaurant in Brooklyn’s Greenpoint, The Hidden Pearl is a Japanese-inspired cocktail bar.  The space is rather small, seating no more than 20 patrons.  So, you probably want to consider making reservations before your visit here, though walk-ins are welcome on a first-come first-served basis.  The Hidden Pearl’s menu offers craft cocktails, beer, wine, sake and Japanese small plates.  The Hidden Pearl is open Wednesday through Sunday starting at 6pm.