Just came across this little festival thing happening in a few weeks:
http://www.naturalgames.fr/naturalgamesuk.htmlNot brilliantly translated, but looks like a weekend of climbing, bouldering, slacking, kayaking, paragliding and other stuff...
Sharma, Graham, Andrada, Ojeda, Lynn Hill to name but a few...
Free shuttle to the local crag and a boulder wall too (I think)