I'm even happier with the call we received that moved us from deck 11 to accommodate a family of four who had booked the deck 13 cabin that only holds two!
Ah, I didn't even see the people up there! It doesn't look like a big enough open area to be a sundeck. I'm gonna guess it's a walk through at best. Maybe we'll see soon?!
Where they are standing is outside the thermal suite. I can't imagine that would be made available to everyone, or even anyone other than thermal suite guests. (I'm not seeing any access doors in thermal suite renders either.)