Fonllech Menhir 9

Standing alone on the Welsh moorland, this ancient stone marker cuts a solitary figure against the Snowdonia backdrop. The menhir - essentially a big upright stone plonked here by our ancestors thousands of years ago - won't set your world alight, but it's got a quiet presence that grows on you. Getting there involves a proper walk across rough ground from Harlech, so wear decent boots and don't attempt it in flip-flops. Kids might find it a bit underwhelming unless they're into ancient mysteries, but adults who appreciate prehistoric monuments will find the setting rather moving. The stone itself isn't particularly impressive in size, but the remoteness adds to its appeal. You're looking at maybe an hour round trip from wherever you park, assuming you can find the thing - it's not exactly signposted like a modern attraction. Free to visit, naturally, being a lump of rock in the middle of nowhere. If you're staying at one of the holiday parks near Harlech like Min-y-don or Castle View, it makes for a decent morning walk when the weather's behaving. Pack a thermos and make it part of a longer ramble rather than the sole destination.