Land Rovers patrol the site to deter tunnellers burrowing their way in.
The tunnellers map the length and direction of the tunnel using satellite pictures.
Specialist cavers and tunnellers now have to dig alongside them.
They have become tunnellers of which the nation has reason to be proud.
I am sure that the tunnellers will solve that problem.
I would love to have been a long tunneller.
That gives the tunnellers a great financial advantage because they can acquire a farm for, say, £100,000 whereas as development land it could be worth £2 million.
The tunnellers, however, are still trying to get through the fault —not because the operation involved is difficult but because of the lack of investment.
