Overview
Glenmalure (Irish: Gleann Málúir) stretches for about 20 kilometres through the heart of the Wicklow Mountains, making it the longest glacial valley in both Ireland and Britain. Flanked to the west by the massive Lugnaquilla massif – the county top of Wicklow and the provincial top of Leinster – and to the east by the slopes of Lugduff and Mullacor, the valley opens onto a series of hanging valleys, the most notable being Fraughan Rock Glen. The valley floor is cut by cross‑valley and lateral moraines left by the last ice age, and the surrounding bedrock is dominated by late‑Caledonian Leinster Granite.
The valley is a magnet for hill‑walkers and climbers. The An Óige Glenmalure Youth Hostel, dating from 1903, sits at the junction with Fraughan Rock Glen and provides a rustic base for those seeking a digital‑detox experience. Modern visitors also favour the family‑run Glenmalure Lodge and the self‑catering Glenmalure Pines Log Cabin, both of which overlook the valley’s sweeping vistas.
History
Glenmalure has been a stage for Irish resistance for centuries. In the 13th century the O’Byrne clan’s stronghold at Balinacor dominated the valley, and in 1274 the O’Byrnes ambushed a punitive force from Dublin, taking the Prior of Kilmainham prisoner. The most famous clash came on 25 August 1580 when Fiach MacHugh O’Byrne led a rebel force that routed a 3 000‑strong English army – a defeat that still echoes in the valley’s stone monuments. A boulder near the Military Road crossroads bears inscriptions to both Fiach MacHugh and the 1798 rebel Michael Dwyer.
After the 1798 rebellion the British erected Glenmalure Barracks near the road to suppress further insurgency, but the structure fell into ruin soon after. The valley’s remote, wild character later attracted artists and nationalists; notable guests at the youth hostel include Constance Markievicz, Maud Gonne, Éamon de Valera and W. B. Yeats.
Historical Landscape
The early‑19th‑century Military Road, built between 1809 and 1812, cuts through Glenmalure, following the line of the old rebel routes. Walking the road offers dramatic views of the valley walls and passes the carved battlefield boulder and the ruins of Glenmalure Barracks. These historic features give a tangible sense of the valley’s role in the 1798 rebellion and earlier clan conflicts.
Nature & Wildlife
The glacial valley supports a rich mosaic of habitats – ancient oak‑beech woods, heather‑covered uplands and blanket bogs. Walkers may spot red squirrels, which are making a comeback in the Wicklow Mountains, as well as sika deer grazing the higher slopes. Birds of prey such as peregrine falcons and merlins hunt along the sheer cliffs, while ravens and red grouse can be heard calling across the heather in summer. In spring the valley floor bursts into colour with wild violets, purple foxglove and yellow primrose.
Seasonal Advice
The valley is accessible year‑round, but the most reliable weather for walking is between April and October. Autumn brings a spectacular golden heather carpet, while winter can bring icy sections on the Lugnaquilla “Zig‑Zags” route – experienced climbers sometimes treat the frozen ground as a natural ice climb. Summer visitors should be prepared for occasional rain and bring waterproof clothing; mobile‑phone signal remains patchy throughout the valley.
Winter Activities
When the ground freezes, the steep “Zig‑Zags” ascent of Lugnaquilla becomes a popular low‑angle ice‑climb for seasoned mountaineers. The route crosses private farmland, so dogs are not permitted on the Lugnaquilla approaches – a rule enforced to protect working sheep farms.
What to See & Do
Walking and Climbing
- Glenmalure Loop (15 km, 5–6 h) – Described as the most scenic circuit to Lugnaquilla, the loop starts at the Baravore car‑park, ascends via Fraughan Rock Glen, reaches the summit, then returns over Cloghernagh and the picturesque Arts Lough before descending back to the valley floor.
- Lugnaquilla Summit (13 km out‑and‑back, 7 h) – The most popular ascent from Glenmalure follows the “Zig‑Zags” route past the historic hunting lodge at the trailhead, climbs the steep cliffs of Fraughan Rock Glen and reaches the 925 m summit, offering panoramic views across the Wicklow Mountains, the Blessington Lakes and, on clear days, the Irish Sea.
- Miners Path (1.6 km, strenuous) – A short, steep trail that follows the route once used by lead miners from the Ballinafunshoge mine, passing the Glenmalure Waterfall and dense forest.
- Wicklow Way Sections – Glenmalure sits at the halfway point of the 130 km Wicklow Way. Two popular day‑length sections start from the Glenmalure Lodge car‑park:
- Glenmalure → Iron Bridge (14 km, ~3.5 h each way) follows the brown‑and‑yellow way‑markers along the side of Slieve Mann.
- Glenmalure → Glendalough (14 km, ~4.5 h each way) climbs past Lugduff Ridge, crosses a board‑walked boggy saddle, and descends via the Spinc into the monastic valley of Glendalough.
Heritage Sites
- Battlefield Boulder – Near the Military Road crossroads, a carved boulder commemorates the 1580 battle.
- Glenmalure Barracks Ruins – Remnants of the 1798‑era British barracks lie south of the main road.
- An Óige Youth Hostel – A historic mountain hostel with no electricity or running water, offering a true back‑to‑basics experience.
Accommodation & Food
| Accommodation | Type | Capacity | Notable Features |
|---|---|---|---|
| Glenmalure Lodge | B&B / Pub | 14 en‑suite rooms (including family rooms) | Open fires, historic memorabilia, on‑site restaurant serving local produce, located at Drumgoff Crossroads – halfway on the Wicklow Way |
| Glenmalure Pines Log Cabin | Self‑catering cabin | Sleeps 6 | Scandinavian design, views over the glacial valley, situated within Glenmalure Golf Club grounds |
| An Óige Youth Hostel | Rustic hostel | Dormitory style | No electricity, no phone signal, river beside the building, historic guest list |
The Lodge’s website is glenmalurelodge.ie. The Discover Ireland listing for the youth hostel is here.
Practical Information
Getting there – The nearest rail link is Rathdrum train station, 9 km from the Glenmalure Lodge; the hosts can arrange a pick‑up or taxi. Regular St Kevin’s bus services run between Laragh/Glendalough and Dublin, stopping at the valley’s main crossroads. Dublin Airport is about 70 km north and can be reached by bus or hire‑car.
Parking – Free on‑site parking is available at the Glenmalure Lodge car‑park (a small charge applies for overnight stays). The Baravore car‑park at the head of the valley provides a larger public space for hikers starting the Lugnaquilla loop. A limited number of spaces are available near the Military Road crossroads for visitors wishing to explore the historic boulder and barracks.
Access restrictions – The Lugnaquilla routes that cross private farmland prohibit dogs, a rule enforced to protect the working sheep farms. Mobile‑phone signal is patchy throughout the valley, especially on the higher sections of the Lugnaquilla loop.
Seasonality – The An Óige youth hostel operates only during the summer months and offers no running water or electricity, reinforcing its back‑to‑nature ethos. The Glenmalure Lodge remains open year‑round, with a cosy pub atmosphere and a menu that showcases local produce. Opening times vary; visitors should check the respective websites before arrival.
Navigation – The valley’s trails are un‑marked in places; walkers should carry an OSI Discovery map (sheet 56) or an equivalent GPS track. The “Table Tracks” historic routes link Glenmalure to the cols between Table Mountain and Conavalla, crossing the central spine of the Wicklow range.
Nearby attractions – From Glenmalure you can easily reach Lugduff, Cloghernagh, Arts Lough, and the historic Military Road that traverses the Wicklow Mountains. The Blue Flag beach at Brittas Bay is a 25‑minute drive away for a coastal contrast. The scenic Avoca Valley and the neighbouring village of Aghavannagh are also within easy reach for a day‑trip.
Visitor Tips
- Check opening times – Both the An Óige hostel (summer‑only) and Glenmalure Lodge have variable opening hours; confirm via their websites or by phone before you travel.
- Phone coverage – Expect limited mobile reception; consider carrying a fully‑charged power bank.
- Dog policy – Dogs are welcome in the valley but must be kept away from the Lugnaquilla ascent routes that cross farmland.
- Golfers – The Glenmalure Golf Club, adjacent to the Pines Log Cabin, offers a 9‑hole course with stunning valley views; tee times can be booked in advance.
- Winter safety – Ice on the Zig‑Zags can be treacherous; only attempt it if you have appropriate equipment and experience.
Latitude / Longitude – 52.970001, -6.38.