Dammit, didn't bring my camera again. Too much stuff to think of recently...
They've been mucking about with a small digger yesterday and today although yesterday it looked like the digger was broken as one bloke was lying underneath it for a while. They then dug two small holes.
Today, more lying under the digger and mucking about in the second hole. If I'd had my telephoto lens, I might have been able to find out exactly what they were doing.
Now they're digging at one of the holes again.