This morning's gray skies gave way to a sea of red at Wild Water West.
Park patrons raised their arms in support of the American Heart Association's Heart Walk.
The water park has red t-shirts for sale to raise money for the AHA.
Allen Meeks says his daughter Jerzey, couldn't be there today, so raising awareness about heart disease is personally important to him.
"My 3 1/2 year-old had open heart surgery at the University of Michigan on the 27th of last month so we came out here to support AHA and our non-profit Mended Little Hearts, here in Sioux Falls," Meeks said.
If you would like to show your support for the American Heart Association you may buy one of these t-shirts for yourself. To order "Paint the Park Red" t-shirt, call Wild Water West at 605-361-9313.