Tarps and Bashas.
Tarps or in the UK sometimes called a basha, are highly varsity ways of creating shelter, using bought tarp tents or a rectangular tarp of your own.
They are idea at this time of year, when staying warm isn’t a priority. And they can provide relief from the heat, with shade and allow a cooling breeze to blow thought.
It would be great to master setting this up on the beach.