Discharge of conditions 3, 5, 8 and 9 pursuant to planning permission 20/18308/FUL - We shall source the Old Red Sandstone from Black Mountain Quarries as advised by the Geopark Development Officer and submit a sample for approval. 5. We have agreed that a suitably qualified geologist (Dr Adrian Humpage of The British Geological Society and South-east Wales RIGS Group will be the Geological Clerk of Works and will oversee the works and record the geodiversity interests at the site. 8. Richard Farquhar Area Warden West will oversee the implementation of the development in accordance with the agreed Method Statement and biodiversity mitigation compensation and enhancement measures. 9. One fingerpost will be erected at the bottom of the steps on the verge as far as possible from the carriageway of the A470 with the wording 'Pen y Fan via low underpass which avoids crossing the A470' - Pen y Fan trwy twnnel isel sy'n osgoi croesi'r A470' and another fingerpost will be erected at the junction where the new path leaves the old coach road with the wording 'Parking via low underpass to avoid crossing the A470' - Meysydd parcio trwy twnnel isel sy'n osgoi croesi'r A470'

Between Bryn Du (horseshoe) layby and the underpass beneath the A470 and from the underpass to the old coach road.