Holly’s new favourite Thing: (and is such a 😎 idea)
Swimply! Rent a private swimming pool for an hour or longer. Some are in great locations! For example, I'm going to a saltwater pool in Baby Point tomorrow. I found out about the App late in the summer but better late than never. Some of the places have BBQS and hot tubs etc. You can also rent tennis courts and gathering spaces but I haven't checked them out yet.