Amenities and buildings of note
Eglwys Sant Rhedyw (the parish church) has existed since as early as the 4th century. [5] A traditional 'Plygain' (Welsh language) service is held every year on Christmas Day at 7 a.m. There are two other places of worship in the village: Capel Ebeneser, Felingerrig (Baptist) and Capel Moriah (formerly Salem) (Methodist). The original Capel Salem chapel was closed in the early 20th century, and replaced by the smaller Capel Moriah The larger Capel Salem was eventually demolished, except for the Sunday School building. To avoid confusion, the new Capel Moriah continued to be informally known as Capel Salem by the villagers. Only Capel Ebeneser and Eglwys Sant Rhedyw are still open; Capel Moriah/Salem has closed.
There are five cemeteries in Llanllyfni: Mynwent Eglwys Sant Rhedyw (the oldest), Mynwent Capel Ebeneser - Felingerrig, Mynwent Capel Salem, Mynwent Bara Caws (dating back to the early 18th century) and Mynwent Gorffwysfa (the newest).
Llanllyfni once had at least five public houses, two of which can be seen today though they have been turned into private dwellings. The King's Head was one of these. The last surviving pub, the Quarryman's Arms, closed after a fire and has since been demolished. It was immortalised in the popular song "Quarry (Man's Arms)" by singer Bryn Fôn.
There is one school in the village, Ysgol Gynradd Llanllyfni, a primary school. For secondary school, children have to travel less than a mile to Ysgol Dyffryn Nantlle in Penygroes. World-famous Opera singer Bryn Terfel attended Ysgol Gynradd Llanllyfni.
A fair has been held in Llanllyfni on 6 July, St Rhedyw's Day, for at least 200 years and it is a tradition that still exists today.
The Neuadd Goffa (Memorial Hall) is the centre of village life with numerous events being held there throughout the year.
Llanllyfni is a proudly strong Welsh-speaking community. The Welsh language is central to village activities and events.
Gwynedd is a county in the north-west of Wales. It borders Anglesey across the Menai Strait to the north, Conwy, Denbighshire, and Powys to the east, Ceredigion over the Dyfi estuary to the south, and the Irish Sea to the west. The city of Bangor is the largest settlement, and the administrative centre is Caernarfon. The preserved county of Gwynedd, which is used for ceremonial purposes, includes the Isle of Anglesey.
Llwynhendy, is a village and ward near the town of Llanelli in Carmarthenshire, Wales. The ward, which includes the village, as well as Cefncaeau, parts of Cwmcarnhywel and parts of Bryn and Penceilogi, had a population of 4,276.
Y Felinheli, formerly known in English as Port Dinorwic, is a village and community beside the Menai Strait between Bangor and Caernarfon in Gwynedd, northwest Wales.
The Nantlle Valley is an area in Gwynedd, North Wales, characterised by its numerous small settlements.
Groeslon is a small village in the community of Llandwrog in the Welsh traditional county of Caernarfonshire. Groeslon is administered by Gwynedd Council.
The Nantlle Railway was a Welsh narrow gauge railway. It was built to carry slate from several slate quarries across the Nantlle Valley to the harbour at Caernarfon for export by sea. The line provided a passenger service between Caernarfon and Talysarn from 1856 to 1865. It was the first public railway to be operated in North Wales.
Penygroes is a village in Gwynedd, Wales. The village is located to the south of Caernarfon, and north of Porthmadog, by the A487 road. Penygroes' population stands at 1,793 at the 2011 census, of which 88% are Welsh-speaking, making it one of the most predominantly Welsh-speaking areas of the country. The population of Llanllyfni community, which includes Penygroes and Llanllyfni village, which practically adjoins Penygroes, plus Talysarn, is 4,135 according to the 2011 census.
Rhosgadfan is a Welsh village in the county of Gwynedd, formerly in the historic county of Caernarfonshire, and in the community of Llanwnda. It is notable as the birthplace of Kate Roberts, one of the greatest Welsh-language writers of the 20th century; her childhood home is now a museum.
Y Fron, also known locally as Cesarea, after the chapel, is a country village on the south-west side of Moel Tryfan, overlooking the Nantlle Valley, in North Wales, near Rhosgadfan and Carmel, on the tail of Mynydd Mawr, with epic views of Trum Y Ddysgl and Craig Cwm Silyn. It is in the community of Llandwrog.
Nebo is a small village in Gwynedd, Wales. It is adjacent to the small village of Nasareth and near the larger villages of Llanllyfni and Penygroes.
Deiniolen is a village in Gwynedd, Wales, at the foot of Elidir Fawr, in Llanddeiniolen Community. Deiniolen has views over Caernarfon and on a clear day, Holyhead Mountain and occasionally the Wicklow Mountains in Ireland, can be seen. The population of the electoral ward was 1,909 as of 2011, including nearby Dinorwig, with 81.2% of the population speaking Welsh. The community, Llanddeiniolen, has a population of 5,072 as of the 2011 census, the third-largest in Gwynedd.
Tal-y-sarn is a village in the slate quarrying Nantlle Valley in Gwynedd, Wales, next to Penygroes. It is part of the community of Llanllyfni and includes some of Llandwrog. The ward had a population of 1,930 at the 2011 census, the built-up area having a population of 1,086.
Llanrug is a medium-sized village and community in Gwynedd, north-west Wales. It lies about 4 miles (6.4 km) to the east of Caernarfon, 7 miles (11 km) south of Bangor and 3 miles (4.8 km) northwest of Llanberis. It is the largest populated village in the Arfon area of Gwynedd, Wales. The old name of the village was Llanfihangel-y-Rug, derived from Eglwys Sant Mihangel, which is situated about half a mile west of the village.
Bethel is a village in Gwynedd, Wales. It lies east of Caernarfon on the B4366 road. Bethel Primary School is located in the village. The population of Bethel electoral ward was measured in the 2011 Census, and found to be 1,395. The village population is 1,171 with 87.3% having some form of Welsh identity one of the highest figures in the north of Wales.
Ysgol Dyffryn Nantlle is a bilingual secondary school for pupils aged between 11 and 18 years. It is situated in Penygroes, Gwynedd in Gwynedd, North Wales. The school serves the village of Penygroes and the surrounding rural area. As of 2022, there were 401 pupils enrolled at the school.
Bryn Fôn is a Welsh actor and singer-songwriter. He also became the first ever artist to play live on BBC Radio Cymru in 1977.
Nantlle was a railway station located in Talysarn, a neighbouring village to Nantlle, in Gwynedd, Wales.
Welsh pronunciation ) is a village and a community in Gwynedd, Wales. It is in the historic county of Caernarfonshire. The community consists of the villages of Drws-y-coed, Nantlle, Nasareth, Nebo, Penygroes, Talysarn and the village of Llanllyfni itself. [2] Penygroes, Llanllyfni and Talysarn are almost conjoined. As an electoral ward the 2011 census recorded a population of 1256. [3] It is a largely Welsh-speaking village as 85% of the villagers speak Welsh as their first language. The community covers 43 square kilometres. [4] 
