Hundreds of people stripped off on Sunday to take part in the second annual Sydney Skinny in an attempt to break the world record for the largest nude ocean swim.
Over 700 people took part in last year's inaugural swim, which aims to promote a positive body image.
Held at Cobblers Beach, Middle Head, in Sydney Harbour National Park, the event sees participants swimming 900m amid the waters of Middle Head. There is also a 300m nudie novice swim.
As well as promoting "greater self-acceptance", the ticketed event also raises money for Australia's National Parks and Wildlife Projects.
Starting at 9am, participants set off in quarter-hourly waves, before celebrating their achievements in the site's festival area.
Creator Nigel Marsh said that people use the Sydney Skinny "to throw aside concerns of body image, to connect with nature and celebrate living with more courage and kindness".
Writing on the event's Facebook page after the swim, Andrew Gee said: "Did everyone enjoy today? Was such a great event. Thank you to all those who took time to organise it - see you next year!"
And Karuna Elliot added: "Such an amazingly fun and well organised event. Thank you to all behind the scenes and those making it smooth today.
"MoMo and I had a REALLY enjoyable swim and fun nudie festivities. We are looking forward to next year already."