The nudity is, of course, strategic but the group of guides came up with the idea of the Wakatipu Beauties buff action calendar after "feeling useless" in the aftermath of the February earthquake, river guide and model Anna Moresby said.
"It was just a good thing to do for charity and what's more entertaining than half-naked guides?" Ms Moresby asked.
Fellow guide and model Bjorn Jonsson said despite battling a dual assault from sandflies and canyon chill, the shoot was well worth it.
"It was fun - we get naked for Christchurch," the Swede said.
Limited to 500 copies, the July 2011 to June 2012 calendar costs $10, or $20 signed, and is already being snapped up by Queenstown businesses and Serious Fun River Surfing and Canyon.co.nz customers.
From bare Brazilians to clothes-less Canadians, an international cast of two dozen of the company's guides took part in the two-day shoot around Roaring Meg, the 12 Mile Delta and Rafters Rd on the Kawarau River.
All the proceeds will go to the Government's Christchurch earthquake relief fund and the company plans to do another charity calendar next year.