Police have been called to a former naturist beach in Suffolk following reports of inappropriate behaviour.
Last year naturists lost a fight to keep Corton beach a designated naturist beach, however by-laws do not prohibit nude sun-bathing on the beach.
Police said there had been reports of a man "deliberately exposing himself" and other obscene acts.
Suffolk Police said action would be taken against anyone who caused harassment, alarm or distress.
Officers said this also included anyone who was abusive towards naturists using the beach.
The sands at Corton in Lowestoft have eroded since the naturist beach was established by Waveney District Council in the mid-1970s.
The council said it was forced to close it but pledged to look for a permanent alternative for naturists.