This set matches the "13 Wishes" movie which is about a magic lantern and djinns. These exact furniture is not featured in the movie, but they do fit in well with the theme and since Monster High previously didn't have a pool it's a very useful set.

It contains two sunloungers (which are so thin that they do hold a Monster High doll, but you shouldn't place a Pullip on them *cough*), a little pavilion with two shelves, a coal pan against the nightly cold (the blue cover can be removed, there's a small fire beneath) and a pool with two palm trees and a movable tray. On top of that there's a Cleo doll and three small accessoires, namely a drink, icecream and a bowl of fruits.

The pool comes with a whirlpool function that I didn't test. It's hard to see but it has the shape of the Monster High skull with bowtie logo, the Skulette. Its features are embossed into the pool floor too.
Overall I like the set very much, but the pool is a bit of a letdown. It should have been a bit bigger, they could have left out the pavilion in favour of that. The palm trees, however, rock! I would have loved even bigger versions of those with actual bases.