Overview
Knocknarea is the flat-topped hill that dominates every view west of Sligo town, its summit crowned by a huge stone cairn – said to be the grave of the warrior queen Medb – that stands out on the skyline for miles. It rises 327 metres (1,073 ft) above the Coolera Peninsula, a limestone block with steep cliffs on its Atlantic side. The Irish name is Cnoc na Riabh, and its meaning is disputed – you’ll see it rendered as ‘hill of the moon’ and ‘hill of the kings’ both, so take any single translation with a pinch of salt. If you only do one thing here, climb the stepped path from the Strandhill side to the cairn: under an hour up, and the summit view is the entire reason to come.
From the summit plateau, the panorama stretches in every direction. Look north and you will see the unmistakable flat-topped silhouette of Benbulben and the rugged spine of the Ox Mountains. To the east lies Lough Gill and the town of Sligo, while the western gaze sweeps across the Atlantic Ocean and the long stretch of Strandhill Beach. On exceptionally clear days, the distant peak of Croagh Patrick in County Mayo appears on the horizon. It’s one of the standout walks on this stretch of the Wild Atlantic Way, and the cairn draws people interested in Ireland’s ancient ritual landscapes.
The Climb & Trails
Reaching the summit of Knocknarea requires a moderate to strenuous effort, but the paths are well-maintained and clearly waymarked with red arrows on a black background. There are two primary approaches, each offering a different pace and perspective.
The Queen Maeve Trail is an 8 km (5 mile) loop that circles the mountain. It features a mix of forest sections, a wooden boardwalk through damp terrain, and a notable wooden bog bridge. This route is ideal for those who want a full circuit with multiple viewpoints and varied terrain. It typically takes 2.5 to 3 hours to complete.
For a more direct ascent, the Strandhill trailhead puts you on a well-built path of boardwalk and roughly 500 wooden steps. It’s steeper and quicker – 45 minutes to an hour to the plateau – but it’s essentially a long staircase, so it punishes the legs on the way up and the knees coming down. It’s the busiest route, starting near the beach, and the one most people should take. Bring a windproof layer whatever the forecast: the summit is completely exposed and there’s no shelter once you’re up.
The Culleenamore Approach from the south provides a quieter, more gradual gradient. This path joins the main summit plateau and offers sweeping inland vistas as you ascend. It is a favourite among locals who prefer a less crowded start to their hike. All trails converge on the summit plateau, where the landscape opens up into a windswept expanse of grass and heather.
Queen Maeve’s Cairn & Archaeology
At the very centre of the plateau sits Queen Maeve’s Cairn, a Neolithic passage tomb dating to around 3000 BCE. Built roughly a century before the famous tombs of Newgrange, it is a genuinely huge piece of prehistoric construction. The mound measures approximately 60 metres in diameter, rises 10 metres high, and is constructed from an estimated 30,000 tonnes of limestone.
It remains the largest unopened cairn in Ireland outside the Boyne Valley. Archaeologists note a quarry located just 300 metres to the north, which supplied the limestone for the construction. Evidence suggests the cairn was once clad in quartz, which would have made it glitter brilliantly at sunrise and sunset. The monument is protected as National Monument No. 153, and visitors are strictly prohibited from climbing the stone structure to preserve its integrity.
The cairn is part of a wider ritual landscape that includes smaller satellite tombs, ancient hut sites, and a 1 km stone embankment that once encircled the summit plateau. Just a short distance down the hill lies the Carrowmore Megalithic Cemetery, one of the largest and oldest collections of passage tombs in Europe, which can easily be combined with a visit to Knocknarea.
Legends & Literary Connections
The hill’s name and reputation are bound up with Medb (often anglicised as Maeve), the warrior queen of Connacht from Irish mythology. Legend holds that she lies upright within the cairn, spear in hand, eternally watching over her province. The story of Medb and her husband Ailill, and their quest for the Brown Bull of Cooley, forms the epic Táin Bó Cúailnge, one of the greatest works of early Irish literature.
Knocknarea’s bare, windswept summit turns up again and again in the work of W.B. Yeats, who returned to the mountain and its melancholic mood repeatedly. Yeats is buried nearby in Drumcliffe, and his literary legacy adds a layer of cultural resonance to the physical hike. The mountain’s dramatic profile also inspires modern events like the annual Warriors Run, a mountain race that follows parts of the Queen Maeve Trail, celebrating the athletic spirit of the ancient warriors associated with the landscape.
Practical Information for Visitors
- What to bring: The summit is exposed and weather conditions can change rapidly. Bring waterproof layers, sturdy footwear with good grip, and plenty of water. There are no permanent facilities or shops on the mountain.
- Parking: The main free car park is located at the Strandhill trailhead. Spaces are limited, especially on weekends and during peak summer months. A secondary lay-by exists near Culleenamore for those using the southern approach.
- Dogs: Well-behaved dogs are welcome on a lead. Note that dogs are prohibited on the trails during the lambing season, typically from February to April, to protect local livestock.
- Accessibility: The trails are classified as strenuous due to steep sections, uneven terrain, and the wooden bog bridge, which can become slippery when wet. The route is not suitable for wheelchairs or pushchairs.
- Public Transport: Bus Éireann routes operate from Sligo town to Strandhill and Culleenamore. Summer seasonal services may increase frequency, so check current timetables before planning your trip.
- Nearby stops: After descending, visit the Culleenamore Strand for a coastal walk, or head to the Strandhill Golf Club, whose links course offers views of the mountain from several tees. The Yeats Society building in Sligo town provides further context on the region’s literary history.
Plan your visit for early morning or late afternoon to avoid the midday crowds and catch the best light on the cairn. The mountain stands open year-round, but winter visits require extra caution due to shorter days and potential ice on the wooden boardwalks.