With the collapse of the stacked material causing the lower entrance to be out of commision for genuine cavers (but obviously not 'joe public'), greater use has been made of the upper entrance. The last time I was in there (September last year) you could easliy squeeze round the edge of the gate so there was no need to know the padlock code. Could a similar padlock be fitted to the lower door when the work is completed and the hole to the left of the upper gate blocked with suitable angle iron or such like? Happy to assist once we are able to come out of lockdown (too far away for it to be considered 'local' to me).
Agree entirely about the ameniable owners, met them a while ago, very nice people.