St Justinian's

The ruins of St Justinian's Chapel sit on a windswept headland just outside Ganol, overlooking the Irish Sea with all the drama you'd expect from a sixth-century hermitage. What remains is essentially a stone shell - the foundations and partial walls of a small medieval chapel built on the site where Saint Justinian supposedly established his monastery, though historians disagree about whether he actually existed or was conflated with someone else entirely. Either way, the location itself is the real draw.

You're standing on cliffs with proper views across to Ramsey Island and beyond. On a clear day it's magnificent; on a grey Welsh afternoon it's moody and atmospheric in equal measure. The walk down from the car park takes ten minutes, and the path is manageable if you watch your footing near the edge. There's a small information board that tells you what little is known.

Historically minded visitors will find this worthwhile for fifteen minutes or so. Families with restless children might struggle - there's not much to actually do once you've had a look at the stones and snapped the view. Walkers tackling the Pembrokeshire Coast Path will pass nearby anyway, so it's a logical stop-off.

The nearby caravan parks - Rhosson, Pencarnan Farm, and Pembrokeshire Meadows - make decent bases if you're touring the area. St Justinian's works best as part of a coastal walk rather than a destination in itself. Free to visit, no facilities, and best tackled in decent weather when the views justify the trip.