Looks like this second video about the Beach Club for the brand new Hyatt Vivid Grand Island (video done by doubleu1017) shows a bit more about this area of the resort.  There are apparently three levels with a restaurant, bar, loungers, and a large netted area for lounging (like you’d see on a catamaran) on the top level, the infinity pools and another bar on the middle floor (they have put sand on the top two floors to make it more like a beach), and if you go down another flight of stairs there is the actual beach with loungers and shade umbrellas.

Take a look!  Are you planning on staying at this new Cancun resort with access to this beautiful Beach Club?