Guided by ex-miners, visitors descend to the very depths of the mine and get a taste of what life was like for those who made their living at the coal face.
Bydd cyn-lowyr yn arwain yr ymwelwyr wrth iddynt deithio i ddyfnderoedd y lofa a chael blas ar sut roedd bywyd i’r rhai a oedd yn gwneud eu bywoliaeth o gloddio am lo.