From bare nipples to white knuckles - more than 100 thrill-seekers have ridden a rollercoaster naked.
The 102 enthusiasts bared all to take their seats on the Green Scream rollercoaster at Southend-on-Sea, Essex.
Organisers were hoping they had broken a new record after 32 attempted the same feat in 2004 at Alton Towers, in Staffordshire.
Event organiser Tracy Jones said the roller coaster ran three times to accommodate the bumper crowd of nudes.
The ride took place at Adventure Island, raising money for Southend Hospital Charitable Foundation's Bosom Pals Appeal.
Adventure Island boss Philip Miller said: "People have travelled from all over the UK to take part and we've heard some amazing stories from so many who have been directly, or indirectly, affected by cancer and wanted to give something back."
Barbara Warner, of Bosom Pals, said it "takes of lot of nerve to take off all your clothes" in front of so many people and the world's media.
She added the appeal "would like to say a massive thank you to everyone who was brave enough to bare all and raise such a huge amount of cash - more than £22,000 - for our vitally important cause".