In reply to mark catcher:
there are at least 3 decent campsites in Lapalud, and you can probably hitch rides or borrow guide books etc. from other campers.
The people at the adventure guides are VERY helpful, they are not pushy, they know you just want to be pointed in the right direction, and as long as there aren)t a dozen kids waiting to go canyoning, they are happy to advise.
Wild camping is also very easy and fun, though probably illegal... we didn!t have any issues