Solo. At the cave about 2 hours
Underground – went along to the NE extent (Trick or Treat/An Unexpected Development area) to have a quick look at progress (see above) and to take some sediment pH/temperature readings [mean pH 5.2; soil temp. 10 degs C]. Back to Can of Worms for more sediment pH/temp. readings [mean pH5.1; soil temp. 10 degs C], then returned to the surface
Above ground – moved the pile of rocks to where I needed them, down to the spoil heap extension, and then added them to the wall. When all available rocks were used up, that was it for today. Last task was to take some surface soil pH/temp. readings [pH 5.6; soil temp. 8 degs C].