Sanaigmore to Kilchiaran via Traigh Fleisgein Mhor, Am Miadar and Machir Bay

This is a long, low-level coastal and moorland crossing on the west side of Islay, linking the quiet bay at Sanaigmore with Kilchiaran by way of broad Atlantic beaches, machair grassland, rocky headlands, and old pastoral ground. At around 18 km / 11.2 miles with roughly 200 m / 656 ft of ascent, it is best thought of as an easy walk in terms of gradient, but one that can feel more committing than the numbers suggest because of soft sand, rough coastal sections, wet ground, and the remoteness between access points. The start is near Sanaigmore Bay, by the minor road west of Kilchoman on Islay, Argyll and Bute, and the finish is near Kilchiaran Bay and the road end above Kilchiaran, west of Portnahaven. Sanaigmore is reached by the single-track road signed from the B8018 near Kilchoman, and Machir Bay and Kilchiaran both sit on the exposed Atlantic side of the Rhinns of Islay. (islayinfo.com)

The character of the route changes constantly. The opening stretch around Sanaigmore has a more intimate feel, with rocky shoreline, grazing land, and a sense of leaving the road behind almost immediately. From there, the route trends south through increasingly open country toward Traigh Fleisgein Mhor, then on toward Am Miadar and the huge sweep of Machir Bay, before climbing gently away from the beach and continuing to Kilchiaran. None of the climbs are especially steep, but the repeated transitions between grass, sand, uneven shore, and informal trods can slow progress. On a dry, calm day it can feel spacious and forgiving; in strong Atlantic wind or after rain, it becomes much more serious. Using HiiKER before setting out is especially helpful here because waymarking can be limited and some sections are more a line across terrain than a built path.

Terrain and what to expect underfoot

From Sanaigmore, expect a mixture of grassy coastal margins, rougher stony sections, and occasional boggy patches where drainage is poor. The first few kilometres are usually the most irregular underfoot, with small undulations rather than any sustained climb. Traigh Fleisgein Mhor introduces a more open shoreline feel, where the walking can alternate between firmer turf and softer beach margins depending on tide and recent weather. Even on an “easy” route, this is where pace often drops.

Around the middle of the walk, the landscape broadens into classic west Islay scenery: machair, dunes, and long views over the Atlantic. The approach to Machir Bay is one of the visual highlights. The bay is known for its long sandy beach, about 2.1 km / 1.3 miles in length, backed by dunes and machair, with Atlantic surf rolling straight in from the southwest. (geoguide.scottishgeologytrust.org)

Walking on the beach itself can be straightforward on firm, damp sand, but much more tiring on dry soft sand. If the route line leaves the beach for higher ground, expect short rises through dune or grassy terrain rather than any major ascent. South of Machir Bay, the route toward Kilchiaran becomes quieter again, with a more broken coastline and a mix of pasture, rough grass, and rocky edges. The final approach to Kilchiaran Bay is often the most secluded-feeling part of the day.

Landmarks, nature, and wildlife

This side of Islay is rich in coastal habitat. The machair around Kilchoman and Machir Bay is especially important: Islay has notable dune and machair systems, including fossilised dune landscapes in the Kilchoman area. (islayinfo.com) That means hikers can expect a changing mosaic of short flower-rich grassland, sandy ridges, wet hollows, and salt-laden pasture rather than a single uniform landscape.

Birdlife is one of the biggest draws. Islay is widely known for abundant and varied wildlife, and the west coast supports seabirds, waders, raptors, and seasonal migrants. Depending on time of year, keep an eye out for gulls and terns over the shore, waders feeding along wetter margins, and birds of prey quartering inland ground. Around quieter bays and rocky edges, seals are also a realistic possibility.