Sneaky Sip is a hidden speakeasy in Lisbon’s Príncipe Real neighborhood, known for its inventive cocktails featuring unconventional ingredients like anchovies, duck fat, and mustard. To enter, guests need a monthly password found on their Instagram page. Inside, the neon-lit basement bar offers a funky, intimate atmosphere with playful details, including a vintage photo booth at the entrance. It's a unique spot for adventurous cocktail enthusiasts seeking a distinctive experience in Lisbon.