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Great Western Greenway: 42 km of Pure Irish Countryside

10 min read Beginner May 2026
Scenic cycling path through green Irish countryside with stone walls and rolling hills on the Great Western Greenway in County Mayo
Síle O'Donnell, Senior Cycling & Wellness Editor

Síle O'Donnell

Senior Cycling & Wellness Editor

Síle is a cycling journalist specialising in accessible greenways and leisure routes for older adults across Ireland, with 14 years of experience documenting Ireland's cycling infrastructure.

If you're looking for a cycling route that doesn't demand too much but delivers plenty of scenery, the Great Western Greenway might be exactly what you need. This 42-kilometre traffic-free path stretches across County Mayo, connecting Westport to Achill Head with nothing but green fields, quiet villages, and genuine Irish countryside all the way.

The beauty of this route is its simplicity. You're not tackling mountains or navigating busy roads. Instead, you're riding along a former railway line — flat, predictable, and genuinely peaceful. Most people ride sections of it rather than the whole thing in one go, which makes sense. It's broken naturally into smaller chunks by villages where you can stop for tea, stretch your legs, and chat with locals who've seen plenty of cyclists pass through over the years.

Distance

42 km total

Terrain

Flat, well-maintained

Traffic

None — fully protected

Difficulty

Beginner friendly

The Route Itself

The greenway starts near Westport, a town that's already worth a wander if you've got time. From there, the path heads southeast towards Achill Head. You're cycling alongside the Carrowmore Lough for stretches, and the water reflects the sky in a way that makes you forget you're on a bike — you're just somewhere beautiful, moving at a pace that lets you actually notice things.

What makes this route special isn't dramatic scenery, though it's certainly pleasant. It's more about the feeling of being completely separated from traffic. You'll pass through small villages like Leenaun and Mulranny. Stop if you want. Most villages have at least a café or pub, and people are used to cyclists turning up mid-morning or early afternoon looking for coffee and a rest.

The whole path is accessible by bike — that's the point. No steep climbs, no tricky descents. Just steady, easy cycling. If you're not confident on a full 42 km, plenty of people do 10-15 km sections. Ride out, have lunch, ride back. Nobody's keeping score.

Flat cycling path with green fields and mountains in the distance, typical scenery on the Great Western Greenway
Cyclists resting at a scenic viewpoint overlooking green Mayo countryside with stone walls and rural landscape

Planning Your Day

If you're riding the whole 42 km, you're looking at around 4–5 hours depending on your pace and how many stops you make. Most people don't rush. You'll want a bike that's comfortable — doesn't need to be fancy, just something that fits properly and has decent brakes.

Bring water. Bring snacks. The route has cafés and shops, but you won't want to be stranded 20 km out with nothing. Weather in Mayo can be unpredictable, so a lightweight rain jacket makes sense even if the forecast looks clear.

Parking is available at the Westport end, and there's also access from Achill. If you're not keen on riding the full distance back, there's a bus service that takes bikes — worth checking current schedules, but it's genuinely helpful for people who want to do a one-way ride.

Important Information

This article provides educational information about the Great Western Greenway route for planning purposes. Conditions can vary seasonally — weather, path maintenance, and local facilities change throughout the year. Always check current conditions before setting out, wear appropriate safety gear including a helmet, and let someone know your planned route. If you have any health concerns or haven't cycled in a while, consider consulting with your doctor before embarking on longer rides. Local visitor information centres can provide up-to-date details about facilities, services, and seasonal considerations.

A Route Worth Your Time

The Great Western Greenway isn't trying to be anything more than what it is — a pleasant, accessible cycling route through beautiful countryside. There's no pressure to go fast, no traffic to worry about, and no complicated navigation. Just you, your bike, and 42 kilometres of green Mayo.

Whether you're riding the whole thing or just a section of it, you'll understand why so many people come back to this route year after year. It's straightforward cycling in one of Ireland's quieter corners, and that's genuinely enough.