Cinco De Mayo Falls Park FiestaCinco De Mayo Falls Park FiestaiStockShare on TwitterShare on FacebookMay 9, 2015 | 11:00 AM - 7:00 PMFalls Park131 E Falls Park Dr, Sioux Falls, SD 57103 United StatesEvent Website: www.cincofiesta.com Additional Information11am-7pm at Falls Park. Food, piñatas, live music, kids zone and more.