Nashville is going after some of Florida's vacationers AND no more worries about 'gators... When I heard the name of the park, couldn't help it, cracked me up a bit and wondered if Hasbro would have something to say about it... or just going to schedule their vacations soon. Opryland resort to build $90M water park Artist rendering... NASHVILLE — A water park complex that Ryman Hospitality has planned for its Gaylord Opryland Resort and Convention Center will cost $90 million and cover more than 217,000 square feet, including water slides, food and bar service and a live entertainment area. The company hopes to open the facility, which will link to its Opryland hotel building, in late 2018. Ryman Hospitality detailed plans for the indoor/outdoor water park to be called Soundwaves at a press event Wednesday.