From crumbling ruins to holy wells and butterfly-filled forests, some of the country’s loveliest spots have been all but forgotten. Our experts name their favourites
I found the fairytale tower of Dolbadarn Castle near Llanberis quite by chance as I climbed the hills behind the Dinorwic slate museum. Halfway up the steep slope, in search of a row of ruined slate workers’ cottages, I stopped to catch my breath. The sky cleared and I looked down over the clear deep waters of Llyn Peris. There it was, perched on the hillside, against a backdrop of Welsh mountains: a perfect humble little tower, built by Prince Llywelyn the Great around 1230. It was here that the prince’s grandson Llywelyn the Last kept his brother Owain imprisoned for 20 years.
Dave Hamilton, author of Wild Ruins: The Explorer’s Guide to Britain’s Lost Castles, Follies, Relics and Remains