Loch Sealg, Beinn Mhor, Creag mhoilasail and Gleann Airigh an Domhnuill Loop

This is a long, wild moor-and-hill circuit in the South Lochs of Lewis, taking in the broad shoulder of Beinn Mhòr, the rougher ground around Creag Mhòilasail, and the lonely glen of Gleann Airigh an Domhnuill. At around 20 km / 12.4 miles with roughly 600 m / 1,970 ft of ascent, it sits well in the medium category on paper, but the seriousness depends heavily on ground conditions, visibility, and route-finding. Much of this landscape is open, exposed, and only lightly waymarked if at all, so it suits hikers who are comfortable with remote terrain and who can follow a route carefully using HiiKER. The nearest significant access point is the Lemreway area on Loch Sealg in the South Lochs district of the Isle of Lewis, a small crofting and fishing settlement reached by the B8060. (visitouterhebrides.co.uk)

The outing begins in a deeply characteristic Hebridean landscape: sea loch shoreline, scattered crofting ground, peatland, and rising moor. Loch Sealg itself is a sea loch on Lewis’s east coast, and Lemreway sits on its shores with views toward Eilean Liubhaird and the open Minch beyond. Expect a quiet start if the route begins near the end of the public road around Lemreway or one of the nearby access tracks, with the first few kilometres usually serving as the transition from low, wet ground into rough hill country. If you are planning transport, Stornoway is the main gateway to Lewis, with onward road travel south and east into the Lochs district; by car, the usual approach is via the A859 and then the B8060 toward Gravir and Lemreway. Public transport is more limited, so most hikers should expect to use bus services only as far as the South Lochs area and then arrange a taxi or a long walk-in depending on the exact start point. (visitouterhebrides.co.uk)

Terrain and route character

The first section is likely to feel deceptively gentle. The gradients are not especially fierce at the outset, but the ground can be energy-sapping: wet grass, peat hags, heather, and intermittent animal tracks rather than a built path. After roughly 3 to 5 km / 1.9 to 3.1 miles, the route begins to climb more decisively toward the higher moor and the long upper slopes of Beinn Mhòr. Beinn Mhòr on Lewis rises to 572 m / 1,877 ft and is the highest hill in the Pairc range, so even though this is not a mountain by Highland Munro standards, it dominates the surrounding country and gives the walk a real sense of scale and exposure. (walkhighlands.co.uk)

The ascent is usually steady rather than technical. In dry weather, progress can be straightforward if you hold the line well; in wet or misty conditions, the same slopes can become much slower because the terrain offers few obvious handrails. The broad summit area and connecting ridges are where careful navigation matters most. Distances can look short on the map, but the combination of bog, uneven peat, and featureless ground often stretches timings. For many hikers, this is the point where the route feels more demanding than the “medium” label suggests.

From the higher ground, the circuit opens out into wide views over Loch Sealg, the indented coastline, and the broken moorland interior of Pairc. Creag Mhòilasail adds a more rugged note to the walk, with rockier ground and a stronger sense of relief than the gentler lower moors. The descent through Gleann Airigh an Domhnu