Free Oktoberfest Enjoyable On Tap In Downtown Las Vegas. Everybody is welcomed to enjoy the sixth yearly Oktoberfest party downtown at Centennial Plaza on Saturday, Oct. 4, from 2 to 9 p.m. at 401 S. 4th St. Located on the campus of the Historic Fifth Street School at Fourth and Clark streets, the outdoor event on Centennial Plaza will certainly be free and ready for the general public. Enjoy standard German food, beers, music and dance. Drinks will be available for sale. Home entertainment will be offered by the Oompoporama band, an all-female oompop party band, and the Las Vegas Bavarian Dancers. A childrens activity location will include caricature artists, deal with painting, balloon artists, games.