The B4319 road is a road in Pembrokeshire

Pembrokeshire

Pembrokeshire is a county in the south west of Wales. It borders Carmarthenshire to the east and Ceredigion to the north east. The county town is Haverfordwest where Pembrokeshire County Council is headquartered....

 in far southwest Wales

Wales

Wales is a country that is part of the United Kingdom and the island of Great Britain, bordered by England to its east and the Atlantic Ocean and Irish Sea to its west. It has a population of three million, and a total area of 20,779 km²...

. It leads southwest out of the town of Pembroke

Pembroke, Pembrokeshire

Pembroke is an historic settlement and former county town of Pembrokeshire in west Wales. The town and the county derive their name from that of the cantref of Penfro: Pen = "head" or "end", and bro = "region", "country", "land", and so it means essentially "Land's End".-History:The main point of...

 from the A4139 road at 51°40′23"N 4°54′43"W, and passes through the villages of St Petrox, Merrion and Castlemartin

Castlemartin, Pembrokeshire

Castlemartin is a village, parish and community in the Hundred of Castlemartin, Pembrokeshire, West Wales.- Location :...

 before passing Freshwater West

Freshwater West

Freshwater West is a -long beach near Castlemartin, Pembrokeshire in south-west Wales. It lies along the B4319 road, adjacent to the Army Tank Ranges that use this part of the Pembrokeshire National Park....

 along the coast and then joining the B4320 road at 51°40′4"N 5°3′41"W which leads to Angle

Angle, Pembrokeshire

Angle is a village and Community located on a narrow peninsula on the very southwest tip of Wales in Pembrokeshire. It has two public houses, a school, post office, a castle, St Mary's church and a sandy beach to the west of the village. The nearest viable rail station is Pembroke, from where there...

.
The road also leads to the Bosherton Lily Ponds.