The name is Welsh, and probably means "On (the brook called) Rhath.
A long, fine, sandy beach stretches the whole length of the village. At extreme low tide you can still see the petrified forest which are the remains of a forest destroyed when sea levels rose 7000 years ago.
Several good places to eat and three fine inns together with the beach and safe swimming make Amroth an ideal family holiday centre. Ruins of the castle still remain and one mile inland is the Anglican parish church.
The parish was an important anthracite coal mining area until the end of the 19th century. Slight remains of mines and tramways are still visible. Amroth lies in the Pembrokeshire Coast National Park and is the southern start of the Pembrokeshire Coast Path.