A swell time starts in 2023.

The Grand River Dam Authority and the City of Siloam Springs, Arkansas are collaborating to bring a new, national-caliber whitewater adventure park to the Upper Illinois River in the Ozark Mountains. Philanthropic support from the Walton Family Foundation provided funding for the design and construction of the park.

WOKA Whitewater Park will feature heart-pumping wave action for kayakers, surfers and tubers of all skill levels. Relax and enjoy the serene beauty of nature on a stand-up paddleboard or watch the action from the waterfront spectator seating.

Currently under construction in Oklahoma near the Arkansas border, WOKA will be a best-in-class whitewater park featuring a 1,200-foot long, 100-foot wide side channel off the Illinois River with eight drop-features for an unforgettable experience.



Channel your WOKA and get ready for a swell time in 2023.

Get ready for a rip-roaring, wild water adventure!


Watch a message from Oklahoma Governor Kevin Stitt about WOKA’s addition to the tourism industry.


Watch a message from Arkansas Governor Asa Hutchinson about the natural beauty of the Ozarks.