Popular nightlife destinations for tourists in Switzerland include Geneva, Zurich, Basel, Lausanne, and Bern. Each city offers unique attractions, such as bars, clubs, and pubs. Geneva is known for its lively nightlife and vibrant culture, while Zurich is known for its clubs and bars that cater to all types of music and tastes. Basel has a wide range of clubs, pubs, and bars, while Lausanne is known for its elegant and stylish bars. Finally, Bern is known for its cozy and quaint bars.