In reference to the patent: WO2017024291A3
As you just found, using www.google.com/patents is unreliable when searching patents. You can find a better version at patents.google.com and even better at The Lens. In any case, this is a patent application (not yet a patent) and it is for a children's play fort that floats on a cushion of air. Please see the figure below from the patent. Also, you used the tag "design-patent", but this is not a design patent, but a utility patent application.