Overview
You don’t expect a stand of Californian giant redwoods on the southern slopes of the Galtees, but Glengarra has them. The car park doubles as an informal arboretum, planted by the owners of the old Shanbally estate: towering Wellingtonia (giant sequoia), Bhutan pine, ancient yew, Monterey cypress and cedars of Lebanon cluster along the forest road, and by early summer a dense canopy of rhododendron arches over the access track. If you have only twenty minutes, walk the forest road under that canopy to the big trees and back – it’s the best of the wood at its most accessible.
Glengarra covers roughly 570 hectares (1,400 acres) about 15 km southwest of Cahir, blending managed conifer plantation with native broadleaf. The Burncourt River cuts through the centre, crossed by two footbridges that open both banks to walkers, and informal viewpoints along the trails look across the Golden Vale to the Knockmealdown Mountains on clear days. At the northern edge stands the Mountain Lodge, a 19th-century building now serving a different purpose entirely.
History & Heritage
The land around Glengarra carries centuries of Irish history. In 1640, Charles I granted the estate to Sir Richard Everard. Following the Cromwellian conquest, the property was confiscated due to Everard’s Royalist allegiance and eventually passed to the Lismore family, who managed it until 1940. The ruins of Shanbally Castle, once the Lismore family seat, remain visible beside the R639 road between Burncourt and Clogheen.
Viscount Lismore built the Mountain Lodge in 1872 as a shooting and fishing retreat, and set the estate’s distinctive planting scheme, importing exotic species such as cedar of Lebanon, Sequoiadendron, laurel, and rhododendron during the estate’s ‘Grand Tour’ era. The lodge now operates as an An Óige youth hostel and is being restored by the local community. In 2000 the site joined Ireland’s Millennium Forest project: around 60,000 native trees – mostly oak, alongside birch, alder, and Scots pine – were planted across 15 hectares to mark the new century.
Walking Trails
Glengarra’s trail network is colour-coded and well-maintained, catering to both casual strollers and more active walkers.
- Red Loop (Family Circuit) – About 2 km on an easy grade, taking roughly an hour (Discover Ireland lists it slightly shorter, at 1.7 km). Marked with red posts, it crosses the Burncourt River twice and passes the giant sequoia and yew stands. Many of the old broadleaf trees are tagged and named, which keeps children looking up.
- Millennium Trail (Green Circuit) – This 7 km route demands a moderate fitness level and typically takes 2 to 2.5 hours. Signposted with green arrows and oak-leaf symbols, the path climbs from the car park into the newer Millennium Forest, skirts the river, and opens onto several panoramic viewpoints. Walkers will pass through the rhododendron tunnel, view the historic Mountain Lodge, and encounter a shallow river ford crossed by stepping stones.
Tip: The green markers near the 3.5 km point can be partially hidden by dense undergrowth. Keep an eye on your phone or GPS if you prefer a less navigational hike.
Arboretum & Flora
The car park area functions as a living botanical archive. The Wellingtonia and Bhutan pine specimens are particularly notable, both introduced by the estate’s former owners. The rhododendron canopy peaks in late May and June, a vivid purple-blue tunnel over the forest road. Beyond the exotics, the Millennium Forest planting has successfully encouraged native undergrowth, including bluebells, foxgloves, and wild garlic in the damp hollows near the river.
Holy Well of Shanrahan
Tucked within the wider Shanbally Demesne is the Holy Well of Shanrahan, also known locally as St Malachy’s Well. The well sits in a circular stone basin roughly 1.5 metres across and 1.2 metres deep, crowned by a simple stone cross commissioned by Lord Lismore. Historically, it served as a pilgrimage destination, particularly on Holy Saturday and Easter Sunday. Local folklore attributes healing properties to the water, particularly for rheumatic ailments and eye conditions. Today, the site remains active during Easter, and visitors often leave ribbons on a forked yew tree nearby as part of the tradition.
Wildlife & Picnicking
Designated picnic spots line the river, with sheltered tables and benches for a midday break. The woodland’s varied habitats support fallow deer, hares, foxes, badgers, red squirrels, pine martens, and bats. Birdwatchers should bring binoculars: the river corridor and open ground regularly hold pheasants, hawks, kestrels, ravens, and herons.
Practical Information
Glengarra Woods is open year-round and free to enter. The main car park sits directly off the R639 (the historic Dublin–Cork road) and offers free parking with level access to the trailheads. There are no on-site toilets or refreshment facilities, so visitors should plan accordingly or use amenities in Cahir before or after their walk.
Dogs are welcome on all trails but must be kept under control, particularly near the river and deer grazing areas. Trail maps are available for download from the Coillte website. The Millennium Trail reaches an altitude of roughly 300 m, so weather conditions can change quickly; waterproof footwear is strongly recommended, especially when crossing the Burncourt River stepping stones after rain.
Getting There & Nearby Stops
From the M8 motorway, exit at Cahir and follow the R639 southwest for approximately 15 km. Signage for Glengarra Woods is clear, and the main car park is immediately accessible from the road. A smaller car park sits about 1 km further up the road, near the An Óige hostel at the Mountain Lodge. GPS coordinates: 52.32025, -8.10341.
If you have time to extend your trip, the ruins of Shanbally Castle are a short walk from the R639, and the medieval town of Cahir is just 15 km northeast. Cahir Castle dominates the River Suir and offers a fascinating contrast to the woodland’s quieter atmosphere. For longer hikes in the region, the East Munster Way long-distance trail passes through the wider Galtee and Knockmealdown foothills.
Plan your visit for late spring to catch the rhododendron bloom, or autumn when the native broadleaf canopy turns gold and the trails are quietest.