Ogof y Daren Cilau is a cave system in the limestone escarpment on Mynydd Llangatwg (Llangattock Mountain), which is south of Llangattock village and above...

many miles of previously undiscovered underground passages (e.g. in Ogof y Daren Cilau and Noon's Hole). As an author and photographer[citation needed] he...

Ogof Ogof Agen Allwedd Ogof Craig a Ffynnon Ogof Draenen Ogof Ffynnon Ddu Ogof Hen Ffynhonnau Ogof Hesp Alyn Ogof Llyn Parc Ogof Nadolig Ogof y Daren...

connected to the theoretical Llangattock System through Ogof y Daren Cilau. All the passages in Ogof Craig a Ffynnon occur in the Gilwern oolite which is...

tributaries of the River Neath Brecon Cathedral Ogof Agen Allwedd Ogof Craig a Ffynnon Ogof Ffynnon Ddu Ogof y Daren Cilau Centre for Alternative Technology, Machynlleth...

longest cave systems lie concealed beneath this hill, including Ogof y Daren Cilau and Ogof Agen Allwedd together with the shorter though more accessible...

extensive cave systems which lie beneath it, notably those of Ogof y Daren Cilau and Ogof Agen Allwedd. These two systems are amongst the longest in Britain...

Cambrian Mountains Elan Valley Radnor Forest Ogof Draenen Ogof Ffynnon Ddu Agen Allwedd Ogof y Daren Cilau Ogof Craig a Ffynnon Elan Valley Reservoirs Claerwen...

Hole Ogof Agen Allwedd Ogof Craig a Ffynnon Ogof Draenen Ogof Ffynnon Ddu Ogof Hen Ffynhonnau Ogof Hesp Alyn Ogof Llyn Parc Ogof y Daren Cilau Otter...

operated as a show cave. In the east of the park are the Ogof y Daren Cilau, Ogof Agen Allwedd and Ogof Draenen systems. Also of note, partly on account of...

In South Wales many kilometres of Daren Cilau were first trodden by cave divers; and the link with Elm Hole and Pwll y Cwm was another major feat. In the...