At 472m Mynydd Twyn-glas is the highest hill in Caerphilly and one of the highest points this far South in Wales. This walk takes you along a ridgeway from Mynydd Twyn-glas to Twmbarlwm, 418m, which is one of the best hills in South Wales with commanding views over the Bristol channel and surrounding hill sides.
These two hills form part of ‘The Miners’ list, a list I am compiling of the best hills in South Wales.
