Ancient Sites in Pembrokeshire

Pembrokeshire has one of the densest concentrations of prehistoric monuments in Britain, and one genuinely world-famous connection: the bluestones of Stonehenge were quarried in the Preseli Hills, at Carn Goedog and Craig Rhos-y-felin, and a dismantled stone circle at Waun Mawn is the leading candidate for where they stood first.

The showpiece is Pentre Ifan, a 5,500-year-old burial chamber whose sixteen-tonne capstone rests on three uprights with almost no visible support. Beyond it: Carreg Samson above Abercastle, Carreg Coetan in Newport, the stone rows at Parc y Meirw, and dozens of Iron Age coastal promontory forts along the Coast Path, most of them unmarked.

Many of the sites below are on farmland with no facilities and no formal access. Treat this as a map of what is there, check access before you go, and follow the Countryside Code.