Cliffs at Ceibwr, where Nant Ceibwr flows out to sea
|OS grid reference|
|Sovereign state||United Kingdom|
|Fire||Mid and West Wales|
The parish is in the Pembrokeshire Coast National Park. Its population is predominantly Welsh-speaking. The village lies in the valley of Nant Ceibwr, about 1.5 kilometres (0.93 mi) from its outlet into the Irish Sea at Ceibwr Bay. Ceibwr Bay, owned by the National Trust and on the Pembrokeshire Coast Path, is a favourite walking and picnicking site for both locals and holiday makers, with spectacular cliff scenery.
The Welsh name of the parish, Trevethel, appears on a 1583 parish map of Pembrokeshire.
Moylgrove was described by Lewis in 1833 as a parish of enclosed arable land and pasture with some 400 inhabitants. It is served by the church of St Peter about half a mile to the west of the village centre; St Peter's is annexed to the parish church of St Andrew at Bayvil. Bethel Independent chapel was built in the village before 1800 (possibly as early as 1691) and rebuilt from 1850; a Baptist chapel was built in 1894. At that time the parish was in the Hundred of Cemais and the commote of Is Nyfer.
- This location is used for adventurous activities such as coasteering and sea kayaking in which the participants may encounter the local grey seal family while on the cliffs.
- There a short walk to the Witches Cauldron where bottlenose dolphins can be seen. The Witches Cauldron is a collapsed cave which is fed by the tide and sometimes accessed by coasteering groups.