Meanwhile, back on topic ...
Thanks to Mark for providing the impetus and leadership for an excellent day out on and under the hills. The weather was just right, the company was outstanding and the slate caverns, whilst not measureless to man, were sufficiently extensive to be be of interest and had a smattering of minor artefacts.
I trust the rest of the party got back safely. Pam and I left them when they were setting off from the Fron Boeth boiler to go down to have a look at the Fron Boeth tunnel with talk of a walk back via Croesor and Rhosydd! Our decision to head back was probably correct as Pam was very tired and slept most of the way home in the Land Rover.l
In all, a grand day out.
Dave