Corran Lochan and Clach Bheinn Loop

This 16 km / 10 mile loop around Corran Lochan and over Clach Bheinn is a compact but rewarding hill day in the Arrochar Alps, with roughly 600 metres / 1,970 feet of ascent and a steady mix of forest approach, rough hill path, open hillside, and broad views over Loch Long and Loch Goil. The route is generally best described as medium difficulty: it is not especially long by Highland standards, but the climb is sustained, the upper ground can be wet and uneven, and poor visibility would make the hill section feel more serious. Clach Bheinn itself is a modest summit at about 441 metres / 1,447 feet, but its position gives it a much bigger-mountain feel than the numbers suggest, especially once the trees fall away and the sea lochs open out around you. (caingram.info)

The start is most sensibly associated with Ardgartan / Ardgarten, near the head of Loch Long, rather than a formal mountain trailhead with a large dedicated hill car park. If you are converting map coordinates to a practical starting point, the nearest well-known landmark is Ardgartan, near Arrochar, Argyll Forest Park, on the western side of Loch Long. Public toilets are listed at Ardgarten, and the area is served by bus route 302, which links Helensburgh, Arrochar, Ardgarten, Rest and Be Thankful, and Lochgoilhead on Mondays to Saturdays. (lochlomond-trossachs.org)

By car, most walkers approach via the A83 to Arrochar and then the local road toward Ardgartan. Parking arrangements can vary, so it is worth checking current local restrictions before setting out, but Ardgartan is the obvious access point for this side of the forest and hill network. By public transport, the simplest rail option is usually to travel to Arrochar & Tarbet station and connect onward by local bus or taxi; the 302 timetable shows service through Arrochar, Ardgarten, and onward toward Lochgoilhead, though there is no Sunday service, so timing matters. (spt.co.uk)

What the route feels like

The opening section is usually the gentlest part of the day, following established tracks and paths through the lower forested ground of Argyll Forest Park. This part of the walk tends to feel sheltered and green, with conifers, damp ground, and the sound of burns and small waterfalls after rain. The route toward Corran Lochan uses the Cowal Way and Duke’s Pass path network before breaking onto more open ground beneath Clach Bheinn. That means the first few kilometres are often straightforward underfoot compared with what comes later, though roots, mud, and slick stones are common in wet weather. (caingram.info)

Corran Lochan is one of the key landmarks of the walk and a natural pause point. Set beneath the hill, it gives the route a distinct change of character: below the lochan the walk feels wooded and enclosed, while above it the terrain becomes more exposed and more obviously mountainous. From here the climb onto Clach Bheinn is where the route earns its medium rating. Expect steeper ground, rougher footing, and sections where the path may be faint or braided, especially if conditions are wet or if vegetation is high in summer. (caingram.info)

The summit area is the highlight. Despite Clach Bheinn’s relatively modest height, the outlook is excellent, with views over Loch Long, across to Beinn a’ Mhanaich, and toward Loch Goil, Beinn Bheula, Cnoc Coinnich, and Beinn Reithe when visibility is good.