Just myself and Dan this morning. After the 15mm of rain the day before we were lucky to get in; only ~6 inches of air space.
We carried in 6 scaf bars and got the hose running to the end. After ~1 hour of digging we got the back wall boarded out. Most of the spoil went away with the flow in the floor, but the bigger rocks and clay were brought out and stacked in a corner out of the way.
By the end the hole in the floor easily took away most of the spoil and the slightly dipping roof ahead provides a clear way on.
We left the hose running, so hopefully it wont have all collapsed by the next return.