Nant Gwrtheyrn

Nant Gwrtheyrn is a Welsh Language and Heritage Centre, located near the village of Llithfaen on the northern coast of the Llŷn Peninsula, Gwynedd, in northwest Wales.

The centre takes its name from the valley in which it is located, Nant Gwrtheyrn ("Vortigern's stream"), which lies in isolation by the sea at the foot of Yr Eifl.

The quarry closed early in World War II, partly due to a drop in demand and also to transport difficulties.

Occupied by hippies for a time during the 1960s, the site was the subject of several plans for redevelopment, including as an approved school, when it was acquired by a local trust, head-speared by Dr. Carl Clowes[1] who set it up to establish a Welsh language centre.

The centre is used in addition for weddings and conferences, and as a residential site for Writing students at Liverpool John Moores University.

British Pathé characterised driving up the road as "Climbing the Unclimbable" and filmed a car successfully ascending it.