Swimming: Secret skinny dipping – don't forget your birthday suit

We've had secret cinema, hidden restaurants and pop-up camping, where visitors turn up to locations disclosed at the last minute, unaware of what to expect.

This Saturday, naturism is getting the "secret" treatment, as those behind the Secret Cinema events are inviting people to join what they hope will be the world's largest skinny dip. The main event will be at this weekend's Wilderness Festival in Oxfordshire, but organisers are encouraging people from all over the country to visit secretswimming.com and arrange a swim.

But maybe those who do, should wonder whether they'd rather their skinny dips be mass events, or if they would prefer it was end-of-the-night spontaneity with friends?