Porth Trecastell Hillfort

The circular stone ramparts rise from the Anglesey landscape like the rim of an ancient crown, marking where Iron Age communities once watched the seas around their island home. Porth Trecastell Hillfort sits on elevated ground near Ty Croes, its defensive walls still clearly visible after two millennia of Welsh weather. Walking the perimeter gives you a proper sense of how these early inhabitants chose their spot - commanding views across the countryside with the sea glinting in the distance.

History enthusiasts will find plenty to ponder here, though there's precious little interpretation on site. The earthworks are substantial enough to spark the imagination, particularly for anyone fascinated by how our ancestors lived and defended themselves. Families with older children who don't mind a bit of rough walking will enjoy scrambling around the ramparts.

It's completely free to visit and you can explore at your own pace, though allow at least an hour to walk the circuit properly. The site works well as part of a broader Anglesey exploration from any of the nearby holiday parks - Silver Bay Holiday Park and Pen-y-Llyn Touring Caravan & Motorhome Park are both within easy driving distance. Just don't expect facilities or guided tours; this is raw archaeology where your imagination does the heavy lifting.