danthecavingman said:The Grosvenor Caving Club control the access into Halkyn Mine via the Olwyn Goch Shaft. Hope this helps.
Here is a good link: http://www.subbrit.org.uk/sb-sites/sites/m/milwr_tunnel/index3.shtml
Dan.
The trip South from the portal to Powells lode & back was done (unofficially!) by some past Crewe members in the mid 80s.Les W said:You need to contact Steven Brown, Grosvenor Caving Club.
I expect Jackalpup may reply soon as well. He may have more info.
Bubba, you can get from Loggerheads (furthest point south) all the way north to the Powels Lode branch (about 5 miles I think) after that there is no path on the side of the level so you need to swim or boat. I believe it has been traversed all the way north to the sea but the access agreement specifically forbids this.