Just the two of us today so straight up to the end to start filling bags. Filled a dozen bags each and shifted a few rocks back. Used the sledge to reduce one boulder that proved to be a lump of flowstone nearly 200mm thick with bands of growth clearly visible, there must have been a catastrophic event in the past to shatter flowstone this thick (- earthquake?). The bags were stashed in T Junction and the rocks left for a bigger team. When we had filled our quota [24 bags] we started to shift the bags out to the surface, quite an effort with two people. Bags emptied it was time for refreshment.