I live at Cwm Penmachno in Snowdonia and am interested in exploring the abandoned underground slate workings at Cwmorthin( about 40mins from where I live ) - the key is available for the padlocked adit gate. Also the Rhiwbach adit which is just above my house where there is a combination padlock. I might be given the lock code to enable entry.
I am a pensioner but fairly fit, do hill walking etc. I have done a bit of caving long ago but don`t know anything much about what is involved in exploring these old mines and would be glad of any advice. Is anyone interested in accompanying me who knows these places? Or could I join a small group who goes into these adits?