John Tudek is a caver and artist who is releasing a series of cartoons which under a Creative Commons Attribution-Non Commerical Licence, which means clubs and other non commercial caving organisations are free to make use of them.

They’re available from his Facebook page at https://www.facebook.com/GrimmGrotto and you can contact him through there for more details.

There’s a couple of examples below and to save you asking John, yes, Darkness Below UK is non profit making!