Six Flags Fiesta Texas, the Thrill Capital of South Texas, announces the return of the spectacular New Orleans-style celebration, the Mardi Gras Festival. Each operating day through February 26, Six Flags Fiesta Texas will “let the good times roll” as it transforms into a Texas version of downtown New Orleans, complete with beautifully adorned parade floats, special live entertainment, Mardi Gras-themed park décor and classic Cajun cuisine.