4th May 2017: with Jake, Tav and Duncan P.
The usual warm trip up through 20, even though we kept a relaxed pace. Ma and Jake took it in turns to dig, Tav and Duncan hauled and emptied the skip. The new digging buckets were put to good use and spoil was removed at a steady rate. The hole got deeper, it won't be too long before a ladder will be needed to get in and out.
There is some interesting layering within the sediments, evidence of successive flooding/drying events. Some of the laminations are compact, some less so.