The lower entrance is on Dan-yr-Ogof property and visiting parties need to contact the DYOCAC for access details.
See the Access p.of the Cambrian Caving Council Website for current Access arrangements at http://www.cambriancavingcouncil.org.uk/restricted access caves.html
Description
From the lower entrance, a narrow passage gives access to a large chamber 'Davy Price's Hall' which is now a showcave. From here, via an airlock through the radon fan housing, the cave develops into a series of rifts and chambers up which it is possible to climb to reach the bottom of the shaft to the upper entrance (Tunnel Top).
History
Extended in 1953 by SWCC
Hydrology
Conservation
SSSI: 0854 Mynydd Du (Mixed)
NNR: Dan-yr-Ogof
Gallery
Brendan Marris 2008
Survey
CRG, 1958
SWCC nl.49 (sump extension)
BCRA Trans 4(1/2), 1977
References
SWCC Newsletter 6, 1953, p.6
SWCC nl.7, 1954, pp.7,9
SWCC nl.6, 1954, pp.6-9, Dai Hunt, The Discovery and Exploration of Tunnel Cave
SWCC nl.9, pp.6-8, W.H.Little, Ogof Haffes?
British Caver, 25, 1954, pp.34,47
SWCC Newsletter 12, 1955, p.4
SWCC Newsletter 13, 1955, pp.6-8, D.Hunt, The Ascent of Steeple Aven
SWCC 13, 1955, pp.11-13, J.M.Alexander [Cascade Aven and Flood Rising]
CRG Pub.No. 7, (1958), C.Lewis Railton, The Survey of Tunnel Cave, South Wales
SWCC Newsletter 38, 1961, p.6
SWCC Newsletter 42, 1962, p.1
SWCC Newsletter 47, p.22,1964, Bill Little, Anenome Passage - An extension to Tunnel Cave [from Davy Price's Hall]