Ogof-yr-Ardd, Ogof Yr Ardd, Garden Cave, Pen Blwydd yr Ogof, Birthday Cave
NGR: SN 85014 14634 218 m.asl
, Northern Outcrop - Central (Penwyllt to Penderyn)
map using leaflet map:
Both entrances to the Cave are behind Rhongyr Isaf. At the rear of the garden, a stile on the left leads to a group of dolines, one of which contains an entrance; the safer and more pleasant way in is a second entrance at the rear of the garden surrounded by a wooden fence.
An entrance series of awkward drops through thin beds to a stream which can be followed for a distance. This then leads via a 10 metre pitch to an impressive chamber enlarged on a junction of joints, with the stream entering as a waterfall higher in the roof. The passage continues for 750 metres until a sump is reached.
SWCC in 1950. Extended by Cavers at Minerva in 1985
Brendan Marris 2008
Gary Evans 2020
G.Evans, G.Mitchell, M.Woodfield, S.Davies 2006
Caves in Wales and the Marches (Dalesman), Jenkins, D.W. & Williams, A.M., 1st Ed.1963, p.31