Coumduala Loop

📍 Nire Valley Trails, Waterford

🏛️ Attraction

Last updated: 27 May 2026

Overview

The Coumduala Loop is a strenuous circular walk on the western flank of the Comeragh Mountains. Starting and finishing at the Nire Valley Car Park just outside Ballymacarbry, the route moves between quiet sand roads, agricultural lanes, rugged mountain tracks and open hillside terrain. Depending on whether you take the optional Sgilloges Lakes side-track, the loop measures between 6.6 km and 8 km (4–5 mi) and climbs 350–540 m of elevation. The reward is a clear, uninterrupted outlook over the Nire Valley, the Comeragh plateau and, on still days, the distinctive silhouette of Slievenamon.

Route & Terrain

The trail is designed as a continuous circuit but offers a short branch for those wanting extra distance. The main loop is marked with purple arrows on a white background, while the Coumlara section uses red arrows. The initial stretch follows a firm sand road before climbing onto steeper, rocky paths that cut across open heath and sheep-grazed fields. The ground becomes increasingly exposed as you gain height, so sturdy footwear with good grip is essential, especially after rain when the mountain tracks can turn slick.

Experienced trail runners frequently use the route for training. The varied gradient and clear waymarking allow a fast lap in roughly an hour, but most walkers allow 3½ to 4 hours to navigate the climbs, enjoy the optional detours and take in the ridge views.

History & Place Names

The walk sits on a landscape shaped by both glacial activity and centuries of local movement. The Irish word coum means “hollow”, a common feature in upland Ireland where meltwater carved out shallow basins. Coumlara translates to “hollow where the river forks” and marks a dry coum that historically served as a natural corridor for farmers and travellers crossing the hills.

The trail also follows sections of The Gap, locally known as Sli na Sochraid or Bóithrín na Sochraide (the road of the dead). This natural saddle linked the Nire Valley to Rathgormack for generations and was traditionally used to carry the deceased to the parish church. Walking this stretch offers a quiet reminder of how the mountains shaped daily life and ritual in pre-modern Waterford.

Trail Highlights

  • Coumduala Lough: A still, glacial lake framed by the Comeragh peaks. The water reflects the surrounding ridges and provides a natural pause point mid-climb.
  • Coumlara Hollow: A sheltered, dry basin with softer ground and a calmer atmosphere. Ideal for a short rest or a quick snack break.
  • The Gap (Sli na Sochraid / Bóithrín na Sochraide): A dramatic saddle where the valley floor drops away sharply. The historical weight of the route pairs with wide, open views down toward the Nire Valley and up toward higher ridges.
  • Knockanaffrin Ridge Viewing Platform: A modest wooden platform positioned on the ridge line. It frames 360° outlooks that stretch to the Slieve Gullion range, Tramore Bay and Hook Head.
  • Sgilloges Lakes Detour: An optional 30-minute side-track leading to two small glacial lakes. The upper lake is crowned by Bean Píobra (The Piper’s Woman), a small waterfall whose spray catches the light and can resemble ghostly smoke in the right conditions.
  • River Nire Crossing: A sturdy footbridge early in the circuit offers a pleasant change of pace and a chance to listen to the river before the climb begins in earnest.

Practical Information

  • Difficulty: Strenuous. Requires a good level of fitness and comfort with uneven, exposed terrain.
  • Length & Ascent: 6.6–8 km depending on detours; up to 540 m elevation gain.
  • Estimated Time: 3½–4 hours for walkers; approximately 1 hour for experienced runners.
  • Dogs: Not permitted on this trail to protect livestock and ground-nesting birds.
  • Facilities: Free parking at the Nire Valley Car Park. No toilets or water sources are available on the route, so carry sufficient supplies and pack out all waste.
  • Navigation: The route is clearly waymarked, but conditions can change quickly in the Comeraghs. Download the official Coumlara Loop Map (PDF) or carry OS Discovery Series Sheet 75. Grid reference: S 277 128.
  • Season & Closures: Open year-round. The trail closes on the third Thursday of December each year to allow landowners to carry out undisturbed farm management.

Getting There & Nearby Stops

From Dungarvan, take the N72 west, turn right onto the R672, continue onto the R671 and follow signs for Knockaun. The car park is clearly signed and sits at the trailhead.

After finishing the loop, a short walk into Ballymacarbry provides options for coffee or a light meal. If you have extra time and energy, the wider Comeragh Mountains offer several longer routes, including the famous Gap Walk. For a quieter finish, follow the Sgilloges Lakes path to Bean Píobra and return via the lower valley tracks.

Check the forecast before heading out. Mountain weather in the Comeraghs shifts quickly, and ridge exposure can make wind and rain feel sharper than valley conditions suggest. Downloading the official trail map and noting the purple and red arrow markers before you start will keep you on track.