The Twelve Bens are Connemara's mountain spine: a tight cluster of quartzite peaks rising abruptly from the bog, their bare flanks streaked with quartz so white they seem to glow in low cloud. They are not high by Alpine standards, but they are steep, trackless, and in Atlantic weather they can be seriously challenging. Experienced walkers tackle the main ridge — a horseshoe connecting Benbaun, Bencorr, and five or six other summits — as a full day.
More casual visitors walk the Diamond Hill circuit from the Connemara National Park visitor centre, which gives excellent views across the group without requiring technical scrambling. Wander higher and you move through bog, heath, and bare quartzite with views south to the islands and north to the Maumturk Mountains across the Inagh Valley. The Bens are also excellent for photography: the combination of pale quartzite against dark bog and dark cloud is unlike any other mountain scenery in Ireland.