A very warm and humid walk up to the entrance, apparently it’s the warmest July day on record. Spent some time putting the wire onto another, more suitable reel – my mistake was to drop the old reel and wire down the entrance shaft, then I had to untangle the resulting bird’s nest! On to the main task for the evening, from the base of the pot continuing north – the plan to remove the bridge of flowstone and dolomitic conglomerate that is obstructing forward progress. Drilled holes using new 400mm x 12mm bit until batteries were fully discharged (7 and a bit holes). Only used 6no. preparation of material was done, as required per hole, underground. Returned to the surface to complete a satisfactory evenings work, hopefully there will be some debris to shift on Saturday.