17:00, after loading kit and stuff into the van, drove over to the farm, changed, and lugged all the stuff up to the HR (c. 40kg). Opened the cave and dragged the kit and stuff along to the deep Soft South, had to do it in stages. Once I was at the end, set about building a [roof] slab-retaining wall. Drilled holes into rocks and narrow rock-ledge, inserted ‘studding’ and cemented into place. Kept going until I ran out of cement. Packed everything away, bags were much lighter now, and made my way back to the farm. It was getting dark, 20:30.