Lost Beach is a Pool and Karaoke Bar located at 1810 Zero St, Fort Smith, Arkansas, 72901. Catch live sports action: With multiple flat-screen TVs and a lively atmosphere, Lost Beach is the perfect spot to catch your favorite sports games. Grab a drink, cheer on your team, and enjoy the camaraderie. 3. Happy hour specials: Take advantage of their fantastic happy hour deals on drinks. 4. And of course, come out every Thursday, Friday, And Saturday nights for the BEST KARAOKE around! Voted best Karaoke in the region for 10 years running!!