Heron has already announced they are open on National Mills Weekend. It sounds like a good visit – archive films and refreshments – and the mill and turbine.
The announcement is on their Facebook page – so has anyone else committed themselves? The full list is worth a look.
Even if you cannot manage to get to Cumbria – do congratulate them on their other news:
HERON CORN MILL (BEETHAM) LTD WINS HERITAGE LOTTERY FUND SUPPORT
Heron Corn Mill in Beetham, near Milnthorpe, Cumbria has received initial support from the Heritage Lottery Fund (HLF) for the Waterpower Connection Point project
Looks like the place it is all happening!