have you been in the cave before or has anyone in your planned party been before? The pretties in the cave are leader led on first trip, then effectively you become a leader by the fact you've had the points to be careful of and the route pointed out. I suspect we'll be digging down there on one of the days of that weekend so possible to incorporate leading a trip i would have though between us, but too far away to plan exacts, but if you've someone who has been before PM either myself or Stu and we can arrange the key for you.