Yes, that’s certainly one step beyond. A combination of a hot tub with a roller coaster, and possibly as much spray as a log flume ride (though that part’s not in the plan.)
It’s the brainchild of the mayor of Kyushu spa town Beppu, which is already known for its water-based spas. The mayor released a promotional video and declared that if it got a million views (which it quickly did) Beppu would move ahead with construction. No date set for completion, yet.
The plans call for other spa-water based rides as well, and spa-based gambling rooms. A word of caution: the engineers are not sure they can safely fill roller coaster cars with steaming water. We’re doubtful, too…but who knows?
For more pictures and detail from The Telegraph (UK) click HERE.