Cefn yr Ogof is the highest point of the hill to the west of Gwrych Castle

Gwrych Castle

Gwrych Castle is a Grade I listed 19th century country house near Abergele in Conwy county borough, North Wales.-History:Gwrych Castle was erected between 1819 and 1825 at the behest of Lloyd Hesketh Bamford-Hesketh, grandfather of Winifred Cochrane, Countess of Dundonald. From 1894 until 1924,...

 near Abergele

Abergele

Abergele is a community and old Roman trading town, situated on the north coast of Wales between the holiday resorts of Colwyn Bay and Rhyl, in Conwy County Borough. Its northern suburb of Pensarn lies on the Irish Sea coast and is known for its beach, where it is claimed by some that a ghost ship...

 and Llanddulas

Llanddulas

Llanddulas is a village in Conwy county borough, North Wales midway between Old Colwyn and Abergele and next to the North Wales Expressway.The village lies beneath the limestone hill of Cefn-yr-Ogof...

. It is 204 m (669 ft) high. The views from the top are one of the hidden delights of the North Wales

North Wales

North Wales is the northernmost unofficial region of Wales. It is bordered to the south by the counties of Ceredigion and Powys in Mid Wales and to the east by the counties of Shropshire in the West Midlands and Cheshire in North West England...

 coast with views towards the Clwydian Hills

Clwydian Range

The Clwydian Range is a series of hills and mountains in north east Wales that runs from Llandegla in the south to Prestatyn in the north, with the highest point being the popular Moel Famau...

, Denbigh Moors, (Mynydd Hiraethog) Snowdonia

Snowdonia

Snowdonia is a region in north Wales and a national park of in area. It was the first to be designated of the three National Parks in Wales, in 1951.-Name and extent:...

, the Great Orme

Great Orme

The Great Orme is a prominent limestone headland on the north coast of Wales situated in Llandudno. It is referred to as Cyngreawdr Fynydd in a poem by the 12th century poet Gwalchmai ap Meilyr...

, Anglesey

Anglesey

Anglesey , also known by its Welsh name Ynys Môn , is an island and, as Isle of Anglesey, a county off the north west coast of Wales...

and the Dulas valley. The name refers to the caves located on the hill.

Link to Cefn y ogof, hosted by the Gwrych Castle website. http://chrislad.worldonline.co.uk/page13.html