Beginning this weekend and operating each Saturday and Sunday through May 4, Six Flags Over Texas welcomes back ¡Viva la Fiesta! The cultural celebration returns with authentic food offerings, lively music and traditional dances from Latin America and the Caribbean. ¡Viva la Fiesta! is a great way to make memories with your friends and family in a vibrant atmosphere filled with captivating sights, lively sounds and mouthwatering flavors.