The 2,957 hectares of Connemara National Park protect one of Ireland's last intact blanket bog systems, a living archive of pollen and peat that records 10,000 years of climate history beneath purple moor grass and sundew. Established in 1980 on the former Letterfrack Industrial School lands and Kylemore Abbey estate holdings, the park spans four of the Twelve Bens mountain range — Diamond Hill, Benbaun, Bencullagh, and Benbrack — rising abruptly from sea-level wetlands to 729-metre quartzite summits. The juxtaposition is geological theatre: acidic blanket bog, formed when Atlantic rainfall exceeded evaporation after the last Ice Age, smothers valleys that glaciers carved into Dalradian metamorphic rock 400 million years old. A Connemara National Park tour from Galway traverses this compressed landscape in a single day, tracing the N59 coastal route through Oughterard and Maam Cross where Gaeltacht signage marks the Irish-speaking heartland. The park's visitor centre in Letterfrack anchors most itineraries, offering boardwalk access to active blanket bog and interpretive exhibits on the Connemara pony, a distinct breed that grazed these uplands since pre-Celtic settlement. The Diamond Hill trail — a 7-kilometre loop ascending 445 metres — delivers panoramic views across Ballynakill Harbour to the Twelve Bens' serrated skyline, a vista that painter Paul Henry rendered in flat, brooding planes throughout the 1920s. Kylemore Abbey, a neo-Gothic castle built by Mitchell Henry in 1868 and now a Benedictine monastery, lies 15 kilometres east; most Galway departures pair the two sites, adding Victorian walled gardens and a lakeside Gothic chapel to the day's narrative. The park's ecological importance extends beyond scenery. Atlantic blanket bog, covering just 6% of Ireland's surface, stores 53 million tonnes of carbon and sustains 24 Red List plant species, including the insectivorous pale butterwort and lesser bladderwort. Connemara sheep, smaller and hardier than lowland breeds, graze the slopes in controlled numbers to prevent scrub encroachment, maintaining the open moorland that defines the region's visual identity. Red deer, reintroduced in 2001 after two centuries' absence, roam the northern slopes; peregrine falcons and hen harriers nest on cliff ledges. The park opens at 09:00 daily except Tuesdays, with no entrance fee — a rarity among European protected landscapes. Most Connemara National Park tours depart Galway between 09:00 and 10:00, allowing three hours in Letterfrack before continuing to Kylemore or looping through Clifden, the region's market town. Summer brings 17-hour daylight and wildflower blooms; autumn fog wraps the Bens in shifting grey veils that vanish within minutes.