Where can I meet swingers? I've always wanted to try something new and unusual. I heard that there are some clubs where you can get acquainted. But where to find such an institution, I don't know.

Indeed, there are such institutions, and there are quite a few of them today. Also, of course, you can get acquainted on dating sites. I was told that at https://allswingersclubs.org/swingers-clubs-location/central-america/usa/fl/fort-myers/ you can read reviews about clubs for such people. However, I still prefer fidelity and strong relationships.