Overview
Clashganny Forest sits on the gentle slopes beside the River Barrow in County Carlow. Managed by Coillte and open to the public free of charge, the site combines 19th-century commercial waterways with mature deciduous woodland. The Irish name, Clais Ghainimh, translates to “the sandy river trench,” a fitting description for the valley where the river has carved its path through the limestone landscape. Two signposted loops wind through the trees and along the old towpath, making it a practical base for walkers, cyclists, and families looking to escape the noise of the main roads.
History & Heritage
The River Barrow was a busy commercial artery from the late 1700s until the 1960s, linking inland farms and mills to Dublin’s breweries. Goods like grain, timber, and even Guinness were transported by barge along this route. Clashganny Lock is a well-preserved example of Victorian engineering. Built with stone chambers and heavy wooden gates, it regulated water levels to keep the narrow canal section navigable. After commercial traffic stopped, volunteers from the Inland Waterways Association of Ireland undertook the painstaking work of restoring the lock to working order. It remains a functional piece of industrial heritage, occasionally operated for demonstrations and leisure craft.
Tucked away among the mature trees is a granite mass rock, a quiet reminder of Penal times when Catholic worship was banned. The slab was used for clandestine outdoor services, adding a layer of solemn history to the otherwise peaceful woodland. The forest itself dates back to plantation efforts in the 1800s, originally grown for timber before transitioning into a recreational space that follows Coillte’s Leave No Trace principles.
Walking Trails
The forest offers two distinct, colour-coded loops that cater to different fitness levels and interests. Both trails are well-maintained and clearly waymarked.
- Clashganny Lock Loop – 3.6 km (approx. 1½ hours). Marked with green and yellow arrows, this moderate route starts at the Lock car park. You’ll follow a gentle forest road downhill before dropping onto the wide, grassy towpath beside the river. The path passes the restored lock, small seasonal waterfalls, and a notably crooked veteran tree. Near the end, a narrower forest track climbs back uphill through ferns and wildflowers before reconnecting with the tarmac road near the car park.
- Clashganny Viewing Point Loop – 5.5 km (approx. 2 hours). Signposted with purple arrows, this slightly longer circuit begins at the Viewing Point car park at the top of the hill. It descends through deeper woodland, offering quieter forest paths and occasional glimpses of the river below. The route passes the mass rock, reaches the main car park, and follows the towpath downstream to Ballykeenan Lock before climbing back to the start.
Both loops connect directly to the Barrow Way, a long-distance walking and cycling route that follows the river from its source to the sea. You can easily extend your walk by following the yellow Barrow Way arrows downstream toward Graiguenamanagh or upstream toward Borris.
Wildlife & Nature
The mix of riverside habitat and mature deciduous woodland supports a steady chorus of native birds. Keep an eye out for willow warblers, great spotted woodpeckers, and the occasional kingfisher darting along the water’s edge. The forest floor puts on a reliable seasonal show: carpets of bluebells and primroses in spring, followed by ferns and bracken in summer, and a blaze of amber and russet leaves in autumn. Anglers frequent the river for brown trout, while the quieter forest trails are ideal for nature photography and quiet observation.
Water Activities & Facilities
The lock basin and weir create calm, sheltered waters that draw canoeists and kayakers throughout the warmer months. In July and August, the swimming area above the weir is supervised by a lifeguard, making it one of the safer open-water swimming spots in the region. Always check local signage for seasonal restrictions or water-level changes, as the river flow can vary significantly after heavy rain.
On-site facilities are straightforward but well-maintained:
- Parking: Two free car parks serve the site. The main Lock car park handles most visitors, while the smaller Viewing Point car park (space for around five cars) sits at the hilltop trailhead.
- Toilets & Picnic Area: Public toilets and a picnic table are located near the main car park, making it easy to pack a lunch or rest after a walk.
- Dogs: Well-behaved dogs are welcome on the trails but must be kept on a lead at all times.
Food & Nearby Attractions
If you’re looking for a proper meal after a day on the trails, Clashganny House Restaurant is just a short walk away. Housed in a restored 1830s millhouse, it’s known for its Sunday lunch and classic Irish dishes made with local produce. Book ahead for weekends, as it attracts both locals and visitors.
The surrounding villages offer additional options. Borris (4 km away) is a well-preserved Georgian village with pubs, cafés, and the historic Borris House. Graiguenamanagh sits at the opposite end of the valley, featuring a Palladian bridge, the restored Duiske Abbey, and a selection of independent cafes and bars.
Practical Information
- Getting There: From Dublin, take the M9 south past Carlow, then follow the R763 through Leighlinbridge and Bagnelstown to Borris. Continue on the R729 toward Graiguenamanagh; the Coillte layby/Viewing Point car park is on your left, and the main Lock car park is just beyond it. From Carlow town, head west on the R763 toward Borris. From Waterford, travel north on the N8 to Kilkenny, then join the R763 west.
- Public Transport: Bus services run to Borris. From the bus stop, it’s a 4 km walk to the trailhead, or you can arrange a local taxi. Check current timetables on the Transport for Ireland website.
- Accessibility: The riverside towpath is flat, wide, and suitable for sturdy pushchairs and road bikes. The forest tracks are uneven and better suited to walking boots or mountain bikes.
- Best Time to Visit: Spring and autumn offer the most comfortable walking weather and bright woodland colours. Summer is ideal for swimming and canoeing, while the lock looks most dramatic after a spell of rain when the water flow is stronger.
Download the official trail maps directly from the Coillte website before heading out, as mobile signal can be patchy in the valley. Arrive early on summer weekends to secure a spot in the main car park, and always leave no trace behind you. The combination of working waterways, quiet forest paths, and reliable riverside scenery makes Clashganny a straightforward and rewarding stop on any trip through the Barrow Valley.