Mia-tai’s by the pool anyone?
There are days that the sun is out, the weather is great and you just don’t have a great place to spend it.
Now here is a design by an Architect (sorry orphan photo I don’t have a reference) who knows that you don’t leave anything to chance.
While anyone can just dump sand in their backyard if they have enough space. It does look like they took some time to plan this out.
On closer inspection you see a swing set in the background. A bed frame at the top of the stairs which leads me to suspect this is a resort.