Overview
Clashganny is really two short walks in one place: a flat riverside towpath past a restored Victorian lock, and a woodland loop that climbs to a viewpoint over the Barrow. It sits on wooded slopes above the river in County Carlow, managed by Coillte and free to visit. The Irish name, Clais Ghainimh (‘the sandy river trench’), fits the valley the Barrow has cut here. If you only want an easy hour, do the Lock Loop and skip the climb – the best of Clashganny is down at the water.
History and heritage
The Barrow was a working navigation from the late 1700s until the 1960s, carrying grain, timber and Guinness by barge between inland mills and Dublin. Clashganny Lock is a well-kept piece of that Victorian engineering, its stone chamber and heavy timber gates once holding the water level to keep the canal cut navigable. After the commercial traffic ended, volunteers from the Inland Waterways Association of Ireland restored it, and it still works, opened now and then for demonstrations and leisure craft.
Up among the trees off the longer loop is a granite mass rock, used for outdoor Mass during the Penal era when Catholic worship was banned – a sombre note in an otherwise easy-going wood. The forest itself has carried continuous woodland cover since the 1800s, first planted for timber and now managed for recreation.
Walking the loops
Two colour-coded loops start from the two car parks.
- Clashganny Lock Loop – about 3.6 km, roughly 1.5 hours, signposted with green arrows (some maps put it at 4 km). From the lock car park, follow the wide grassy towpath downstream past the restored lock, then a narrower forest track that climbs back through ferns to the road. Flat, easy and the pick of the two.
- Clashganny Viewing Point Loop – 6 km, about 2 hours, signposted with purple arrows, starting from the small viewing-area car park at the top. It drops through deeper, quieter woodland, passes the mass rock and joins the towpath before climbing back to the start.
Both connect to the Barrow Way, the long-distance towpath route along the river, so you can extend downstream toward Graiguenamanagh or upstream toward Borris.
Wildlife and nature
The mix of riverbank and mature broadleaf woodland keeps up a steady birdsong – willow warblers, great spotted woodpeckers, the odd kingfisher along the water. The forest floor runs to bluebells and primroses in spring and turns amber in autumn, and anglers work the river for brown trout. The quieter forest tracks are good for a slow walk with a camera.
On the water and facilities
The still water above the weir draws canoeists and kayakers through the warmer months. River levels rise fast after heavy rain, so check the signage at the lock before going in.
- Parking – Two free car parks. The larger one is down at the lock and takes most cars; the viewing-area car park at the top holds only about five, so on a fine summer weekend it fills early.
- Dogs – Welcome on the trails, kept under control.
Food and nearby
Clashganny House Restaurant, in a restored 1830s millhouse in the area, is known for Sunday lunch and classic Irish cooking; ring ahead to check it’s open and to book at weekends. For more choice, Borris is a well-kept Georgian village with pubs, cafés and Borris House, while Graiguenamanagh, at the far end of the valley, has a fine river bridge, the restored Duiske Abbey and a handful of independent cafés and bars.
Practical information
- Getting there – The Coillte layby car park sits off the R729 between Borris and Graiguenamanagh: coming from Borris it’s on your right, from Graiguenamanagh on your left, with the lock car park just beyond. Borris, the nearest village, is signposted from Carlow town and from the M9.
- Public transport – Buses serve Borris, about 4 km from the trailhead; a local taxi covers the last stretch. Check current times on Transport for Ireland.
- Accessibility – The riverside towpath is flat and wide, fine for sturdy pushchairs and road bikes; the forest tracks are uneven and better for boots or a mountain bike.
Download the Coillte trail map before you set off – phone signal drops in the valley – and get to the lock car park early on summer weekends, because the top layby holds only five cars.