Enjoy TWU Weekend at Big Splash, Saturday July 27th and Sunday July 28th $10 per person Children 2 and Under are FREE! Must have TWU Union Card to receive Discount Saturday Hours: 10:00 – 8:00pm Sunday: 12:00 – 6:00pm 21st and Yale www.bigsplashwaterpark.com (918)749-7385 Big Splash Flier in PDF