Overview
The Burren looks, at first, as if nothing could grow on it – grey limestone pavement running bare to the horizon, cracked into blocks and fissures. Yet more than 70% of Ireland’s native wildflower species grow here, and in a single square metre you can find Arctic mountain avens beside Mediterranean orchids. That contradiction is the whole point of the place.
The wider Burren and Cliffs of Moher Geopark covers 530 km² of north County Clare, pairing the limestone uplands with sea cliffs that drop over 200 metres into the Atlantic. It was designated a UNESCO Global Geopark in 2011 and is run by Clare County Council with Fáilte Ireland and the Geological Survey of Ireland. Villages like Doolin, Lisdoonvarna, Ballyvaughan and Kilfenora anchor it, with the music, food and character that come with them.
A living landscape: geology and wildlife
The limestone was laid down about 325 million years ago in a warm, shallow sea, then scraped bare by successive glaciations, which left the maze of fissures – grikes – that trap soil and moisture. Those cracks make sheltered micro-climates where Arctic-alpine and Mediterranean plants grow together. The flowers peak in May and June: spring gentians, mountain avens, bloody cranesbill and orchids, 23 of Ireland’s 27 orchid species among them. Come in high summer and much is over; come on a wet November day and it is just grey rock, so time your visit if you can.
The coastal cliffs run to a different rhythm, with tens of thousands of seabirds – puffins, razorbills, guillemots and fulmars – nesting on the ledges in early summer. Inland, the Burren National Park protects 1,500 hectares of karst at the south-eastern edge, the smallest of Ireland’s national parks, with the information point at Corofin the place to start.
Millennia of history
The first farmers arrived in the Neolithic, around 4000 BC. They cleared the woodland, built stone walls that still web the hills, and raised the Poulnabrone Dolmen (roughly 3800–3200 BC), whose excavation turned up the remains of more than 30 people. The Bronze Age left hundreds of fulachtaí fia (ancient cooking sites) and wedge tombs, thick on the ground around Roughan Hill.
Later centuries stacked on more. Stone ringforts like Caherconnell dot the uplands, and the Cistercian Corcomroe Abbey has stood in its quiet valley since the early 13th century. The O’Loughlin clan ruled the Burren from Gregans Castle until the mid-17th century, when the O’Briens of Thomond took over.
What to see and do
- Poulnabrone Dolmen: The iconic portal tomb, free to visit, with an audio guide on site.
- Caherconnell Stone Fort: A well-preserved ringfort that runs traditional sheepdog demonstrations in season.
- Aillwee Cave and Birds of Prey Centre: An underground river and stalactites, plus live raptor displays.
- Doolin Cave: Home to the Great Stalactite, at 7.3 m the largest free-hanging stalactite in Europe; tours drop more than 60 m underground, with a 1 km farm trail and rare-breed animals above ground.
- Cliffs of Moher: The big-ticket coastal stop, with exhibitions and safe cliff-edge walkways.
- Cliff cruises: Boats from Doolin Pier show the cliffs and sea caves from the water.
- Burren Way: A 114 km waymarked trail linking coast, uplands and monuments.
- Burren Food Trail: Smoked salmon at the Burren Smokehouse, farmhouse cheese and farm-to-table kitchens across the region.
Practical information
- Getting there: The N85 and N67 run through the region, and Shannon Airport is about 30 km away. Corofin is served by Bus Éireann route 333 and Local Link routes C5 and C11, but a car makes the scattered sites far easier.
- The free shuttle: From May to September a free hop-on hop-off bus, the Burren & Cliffs Explorer, links Corofin to the national park trailhead at Gortlecka Cross roughly every half-hour; in 2026 it was extended to take in more towns and attractions. It matters, because there is no parking at the trailhead itself.
- The national park, in practice: Free to enter, but bare-bones. Park for free in Corofin and take the shuttle, as there are no toilets, shop or picnic spots at the trailhead. Free guided walks run from the Corofin information point (Clare Heritage Centre, Church Street), with full guiding April to September and weekends only through winter; booking is essential.
- The Burren Centre: In Kilfenora, an indoor exhibition on the region’s geology, history and wildlife, with a tea room and craft shop, open full-time March to October and free parking on the Square. A good wet-weather fallback.
- Best time: May and June for the flowers and seabirds; early light is best for both photographs and wildlife.
- Underfoot: The karst is fragile and the coast is exposed. Stay on marked paths to protect the grike plants, wear proper boots, and check the forecast before any cliff walk.
The flowers are the thing. Time a visit for late May or June, park up in Corofin and let the free shuttle drop you at the pavement, and you will see why a landscape this bare is one of the most botanically rich in Europe.
