Under-18s have been banned from attending a controversial event where adults and child swim naked inside an indoor aqua park.
Waterworld in Stoke-on-Trent have hosted the skinny dipping sessions which are organised by British Naturism for more than two decades.
Recent events, which usually attract around 300 adults and children, have courted criticism from people who are concerned perverts could prey on youngsters.
The latest event, which happened over the weekend, sparked protests outside the Festival Park site, which has led to the new rule being introduced, StokeOnTrentLive reports.
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