76 - The ledge in Plugged shaft
Went back down Plugged Shaft to The Ledge. I went in to the test tubes to change the radon detector (incidentally the draught was back to normal today). Olly heroically bolted across from the ledge on the opposite side of the test tubes looking for my hypothesised continuation the other side of Plugged Shaft. Sadly it didn't exist, which was a great shame - it was just a big ledge in an alcove with an aven above. Olly managed to reverse the climb/traverse removing the gear as he went (I was very impressed!).
We exited the cave with Olly adding a deviation and switching two hangers on the way. The drill started to go flat having done 17 holes and been up the hill for ages.