PARIS (Reuters) - France's data protection authority has given permission for a nudist resort to keep a "black list" of guests barred from its facilities, the organization said.

The Rene Oltra nudist center in southern France was obliged to seek permission after a person complained of being denied a reservation, the authority said on its website.

French law requires organizations to seek authorization to keep lists of individuals denied use of their services.

Contacted by Reuters, the resort declined to give further details regarding individual's exclusion from its site.

The centre's rules require guests to abide by its "naturist ethic" of nudity at all times, weather permitting, and bans upsetting other guests or failing to observe hygiene standards.

"But nudity is not exhibitionism. Any indecent behavior will be sanctioned by immediate exclusion," the rules say.

(Reporting by Joseph Tandy; Editing by James Mackenzie)