Ogof-yr-Ardd, Ogof Yr Ardd, Ogof-y-Gardd, Garden Cave, Pen Blwydd yr Ogof, Birthday Cave
NGR: SN 85014 14634 216 m.asl
Powys
, Northern Outcrop - Central (Penwyllt to Penderyn)
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Active
Cave
Access
Behind Rhongyr Isaf, where Ogof Coed Cae is another named entrance. 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.
Description
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.
History
Upper entrance (Ogof-coed-cae) SWCC, Aug 1950. Extended by Cavers at Minerva in 1985