This would also work with a cafe and similar establishments.
Yes I agree that there are many options that could be made to work. I joke in mentioning "nudist colony" or something like that, but the real formula would likely be something entertaining that doesn't cost a lot of money to engage in but can still blend physical with mental pleasures. Not that "nudist colony" is a good example, but depending on the geography of the location there are probably lots of variations on group activities that can be conducted without investing a lot of money.