Cavers have once again decided to bare it all. This time it’s to support two UK cave rescue organizations, the South & Mid Wales Cave Rescue Team and Yorkshire’s Cave Rescue Organisation.

Inspired by previous naked caving calendars, photographer Laura Brown spent six months putting the calendar together with two other members of the Westminster Speleological Group.

I’ve had a few scary experiences while caving myself, which made me realise how important cave rescue is and I wanted to do something for them. I’ve also had a few friends who had had to be rescued in the past. So I wanted to do something for this great cause while raising a few smiles. Laura Brown, Photographer

The 2013 calendar features photos of both male and female models in many UK caves such as Giant’s Hole, Swildon’s Hole, Alum Pot and Llygad Llwchwr 2 as well as Puiselet Sand Quarry and the Paris Catacombs in France.

Available for £10 (~$16 USD) plus postage, each calendar is are printed on glossy, high quality A3 Paper and mailed in a protective envelope.

For more information or to order your very own copy visit barenakedcaving.co.uk.