While on the topic of conservation and the need to educate / inform about conservation: on a trip down the Gaping Ghyll system yesterday via Bar Pot, we found the route to the Main Chamber marked with cyalumes (those bendy tube things that give off a flourescent light). There was no one else in the system (at least via Bar Pot) and since they were glowing weakly they were presumably left the day before.
We collected them for disposal on our way out.
It may be debatable that if a party needed such markers to find their way back then they shouldn't be there - but at least the buggers could have picked them up themselves (including wrappers)!
