Many beaches and resorts in the UK already welcome naturists
Visitors to Flat Holm this weekend will need little luggage as a special trip for naturists has been organised.
Forty five members of British Naturism will travel to the island on Saturday for a trip they've been trying to arrange for more than four years.
The naturists will sample a wealth of history and wildlife during their visit when clothing will be optional.
Tour organisers Andy and Phil Griffiths are members of both the Flat Holm Society and British Naturism.
"I have been going over there as a volunteer for more than 20 years and have been trying to get this trip organised for at least four years," said Andy.
Flat Holm is popular with visitors for its peace and tranquility
"I am delighted to be given the opportunity to share it with fellow naturists and I am sure they will appreciate the tranquillity and peaceful atmosphere of the island and want to come back again and again.
"It will be nice to share something of the island's colourful history with visitors."
As the boat to Flat Holm from Cardiff Bay holds only 45 passengers, the party of naturists will be the only people visiting the island on Saturday.
Councillor Nigel Howells, Cardiff council's executive member for sport, culture and leisure, said: "This will be the first time British Naturism has visited Flat Holm.
"I hope they enjoy their tour and that the weather will be kind to them over on the island."