Hidden Earth Video Archive

A compilation of videos featured at Hidden Earth, the UK's national caving conference. This weekend-long event takes place in September every year and more details can be found at https://hidden.earth
The aim is to make it a comprehensive resource featuring all videos related to Hidden Earth - opening videos, closing videos, videos featured in lectures, video salon entries, salon winners, distinctions and merits as well as videos made about the Hidden Earth event.
Please help if you are able to fill in any of the many gaps.