Oh, very interesting, I didn't realise intent was part of it. There's even advice from the CPS (linked from that Wikipedia page) about what to do about someone

Oh, very interesting, I didn't realise intent was part of it. There's even advice from the CPS (linked from that Wikipedia page) about what to do about someone claiming to just be generally a naturist [1] [1] https://www.cps.gov.uk/legal-guidance/nudity-public-guidance-handling-cases-naturism https://www.cps.gov.uk/legal-guidance/nudity-public-guidance... It includes this: > Nudity in public alone with no aggravating features is very unlikely to amount to [public nuisance] (or any other) offence.