Splash Out Childhood Cancer tickets to Hawaiian Falls are only $20 plus tax (regular price is $28.99 plus tax). Children two years old and under are free. Tickets are valid throughout the summer (May 26, 2018 – September 3, 2018) to any of the five Hawaiian Falls waterparks: Garland, The Colony, Mansfield, Roanoke, and Waco. Tickets must be purchased at SplashOutCancer.org to receive the discount and available for immediate download. The discount code is TEAMCONNOR18. Hawaiian Falls - The Colony has designated July 24, 2018 from 10:30 am – 6 pm as the day to officially Splash Out Childhood Cancer.