Caolas Annraidh, Port Chlacha Dubha, Port an Duine Mhairbh and Port Goirtean lar

This easy coastal outing on Iona covers about 13 km / 8.1 miles with roughly 200 m / 656 ft of ascent, and it suits walkers looking for a longer half-day ramble rather than a steep hill day. The terrain is generally gentle, but the route still feels wild and remote in places because it links a string of small coves, rocky shorelines, grassy tracks, and open machair-like ground on the island’s quieter side. Caolas Annraidh lies on Iona’s northwestern coast beside the narrow strait separating the island from Eilean Annraidh, and the surrounding place-names confirm this is a coastal route through that part of the island. (iona-placenames.glasgow.ac.uk)

The most practical start point is Baile Mòr (the village on Iona), the island’s main settlement and the nearest clear landmark for access and services. HiiKER’s mapped Iona routes also use The Village / Baile Mòr as the start and finish area for similar easy loops on the island, making it the nearest known start landmark when a precise trailhead is not supplied. (hiiker.app)

If arriving by car, drive to Fionnphort on the Isle of Mull, then take the passenger ferry to Iona; cars are generally not taken across, so most walkers park at or near Fionnphort and continue on foot. CalMac operates the Fionnphort–Iona crossing, and VisitScotland likewise notes that access to Iona is by ferry from Fionnphort on Mull. (calmac.co.uk) If using public transport, the usual chain is ferry to Mull, then bus across Mull to Fionnphort, with Transport Scotland noting that bus links are timed to connect with the Oban–Craignure ferry. (transport.gov.scot)

Route character and what to expect

From the village, expect a gradual transition from settled ground and farm tracks into more open coastal walking. With only around 200 m / 656 ft of climbing spread across 13 km / 8.1 miles, the ascent is unlikely to come in one hard pull; it is more likely to be gathered in small rises over low headlands, uneven pasture, and coastal undulations. That keeps the route within easy grade for fit walkers, but it still calls for sturdy footwear because wet grass, rock shelves, and short boggy patches can all slow progress.

Caolas Annraidh is one of the standout features early or late in the walk, depending on direction. This narrow channel beside Eilean Annraidh gives the route a distinctly Hebridean feel: tidal water, rock outcrops, seaweed-covered margins, and broad views across the Sound of Iona toward Mull. The coastline here is not dramatic in an alpine sense, but it is intricate and atmospheric, with constant changes in texture between skerries, inlets, and low cliffs. (scottish-country-dancing-dictionary.com)

As the walk continues, the named ports—Port Chlacha Dubha, Port an Duine Mhairbh, and Port Goirtean Iar—suggest a route that threads between small landing places or coves rather than following one uninterrupted beach. On Iona, these coastal “ports” are often intimate bays or shore indentations rather than harbours in the modern sense, so walkers should expect frequent changes between grassy approaches, stony edges, and short sections where the line of travel bends inland to avoid rougher shoreline. The place-name record confirms Port an Duine Mhairbh and Port Goirtean Iar as genuine local coastal names in this area. (britishplacenames.uk)

Landmarks, scenery, and wildlife

The scenery is likely to be defined by a mix of machair grassland, rocky foreshore, low cliffs, and bright water views. Iona’s west- and north-facing coasts are especially exposed to Atlantic light, so even on an easy route the landscape can feel big and elemental. In clear weather, expect long views to Mull