Overview
Knockboy (Irish: An Cnoc Buí, ‘yellow hill’) rises to 706 m (2,316 ft) and is County Cork’s highest point. It sits on the Cork-Kerry border, the crowning summit of the Shehy range, with a broad bog-covered top marked by a trig point and a modest cairn. The reward is the view: 360 degrees out to Bantry Bay, the Caha Mountains and, on a clear day, the distant MacGillycuddy’s Reeks.
Most people start from the Priest’s Leap pass, a single-lane road climbing to 463 m and named, reputedly, for a 17th-century priest who leapt his horse off the cliffs to escape British soldiers. The pass gives a dramatic, winding approach and a lay-by to leave the car.
History and legend
The geology is Devonian sandstone, uplifted and then scoured by glaciers. The story is better. Local folklore has a priest, pursued by soldiers, making a miraculous leap on horseback from near Kenmare and landing miles away on the slopes of Knockboy. That legend gives the road its name, Léim an tSagairt.
Flora and fauna
The summit plateau is upland heath: heather, gorse and blanket bog. The heather blooms purple in late summer and pulls in insects. Birdlife runs to red grouse, skylarks and the occasional hen harrier working the open ground. Sheep and cattle graze along the roadside.
What to see and do
- Summit views – from the trig point: the Shehy and Caha ranges, Bantry Bay, the Beara Peninsula and the Kerry highlands. The light is best at sunrise and sunset.
- Lough Boy (Lough Buidhe) – a small, peat-stained lake about halfway up, a reliable landmark on otherwise trackless hillside.
- The cross-marked rock – a faint cross carved into a rock face near the Priest’s Leap road, tied to the priest legend.
- Nearby – after the walk, the village of Bonane, the stone circle at Bonane Heritage Park, or the coastal towns of Bantry and Kenmare.
Practical information
Knockboy is a self-guided day hike. No entry fees, no facilities, no staffed centre.
| Item | Details |
|---|---|
| Starting point | Priest’s Leap lay-by (grid reference W 058 648) – parking for 2-3 cars |
| Distance | Approx. 5 km round-trip |
| Duration | About 2 hours total (1 hour up, 1 hour down) |
| Difficulty | Gradual climb, rated 3/10 – fine for walkers with basic navigation |
| Elevation gain | ~187 m from the pass to the summit |
| Way-marking | None formal; follow the low fence line described in local walk reports. A single stile appears near a small lake halfway up. |
| Surface | Blanket bog and heather; soft or boggy in places, worse after rain |
| Dog policy | Allowed, but keep on a lead near livestock |
| Wheelchair access | No – steep, uneven, pathless terrain |
| Best season | Late spring to early autumn for drier ground; summer for the long daylight |
| Navigation | Carry OS Discovery Series Sheet 85 or a GPS; mobile signal is patchy |
The local route starts at the Priest’s Leap monument (elevation 519 m). From the lay-by, follow the low fence that zig-zags up the hill, taking left turns at the two T-junctions the fence marks. It crosses a small lake and a single stile before the open summit plateau. The final 50 m is a short, well-trodden stretch to the trig point.
The area is remote, so bring water, snacks and a basic first-aid kit. The nearest amenities are in Bantry (about 20 km) and Kenmare (about 15 km). Mobile coverage is intermittent, so download offline maps.
Getting there
The Priest’s Leap pass runs on a minor road connecting Coomhola Bridge (off the N71 north of Bantry) to Bonane near Kenmare. It is one of the highest mountain pass roads in Munster at 463 m, and it is genuinely difficult driving: single-track with a grass strip down the middle, gradients up to 17%, blind turns and unguarded drops. Campervans, caravans and large vehicles should not attempt it, and you must be willing to reverse down steep slopes to reach a passing place if you meet oncoming traffic. Park tight in the lay-by opposite the monument.
For a longer, more varied day, the Gougane Barra route starts from the forest park near the Gougane Barra Oratory. That round-trip is 10–12 km, adding forest trails and a stretch of the Beara Way before it joins Knockboy’s upper slopes.
Safety and preparation
The height is modest, but the boggy ground turns treacherous after rain, and early autumn brings ankle-deep mud in places, so gaiters and waterproof boots earn their keep. The summit is fully exposed and strong winds are common.
Mobile coverage is non-existent in the valley dips, so offline maps are essential. Carry a physical map (OS Discovery Series Sheet 85) and a compass, because heavy mist can roll in within minutes and hide the fence line that guides the whole route. Tell someone your route and expected return.
Seasonal advice
Late spring brings purple heather and the first insects. Summer gives the longest daylight for the views. Autumn can be misty, which adds atmosphere but means wetter, softer ground. Winter is possible for experienced hikers, but short days and likely strong winds call for extra caution.