Almost a beach for rent
On the beach, you rent the parasol and the rubber ring (bouées jaunes). The parasols are just in front of the sea. If you don't want one, you have to be behind. So you can't see the sea.But I think even when you are under you can't see neither.
If you have good eye, you can see people living and take the space just after them. Like that you don't have to pay.