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Routes
Road cycling routes
Ireland
Mayo

Clew Bay and Achill Island loop

Routes
Road cycling routes
Ireland
Mayo

Clew Bay and Achill Island loop

Hard

17

riders

Clew Bay and Achill Island loop

07:34

180km

1,280m

Road cycling

Cycle the difficult 111.7-mile Clew Bay and Achill Island loop, featuring coastal views, Croagh Patrick, and the Wild Atlantic Way.

Last updated: February 26, 2026

Tips

Includes movable bridges

Check opening times.

After 80.9 km for 39 m

After 110 km for 39 m

Waypoints

A

Start point

Parking

Get Directions

1

1.37 km

View of Carrowmore Hill and Croagh Patrick

Highlight • Viewpoint

Looking east you get a great view of two of the peaks in the skyline around Louisburgh, Carrowmore Hill (171m) and the far more lofty Croagh Patrick at 764m with its cone shaped summit.

Tip by

2

28.4 km

Westport Town Centre

Highlight • Settlement

Westport is a quaint little village situated at Clew Bay on the Irish west coast. The Wild Atlantic Way runs through town and with its pubs, restaurants and shops, the …

Tip by

3

40.3 km

Newport

Highlight • Settlement

Newport is a stunning heritage town right on the Great Western Greenway, and beautifully positioned on the shores of Clew Bay.

As well as its beautiful main street shops and …

Tip by

4

64.8 km

Achill Coast Road

Highlight • Cycleway

An amazing place to cycle when the weather is nice

Tip by

5

80.8 km

Achill Sound is the anglicised version, the Irish and official name of the town is Gob an Choire. This is the first settlement you reach after crossing the bridge onto …

Tip by

6

96.1 km

Atlantic Drive Road

Highlight • Cycleway

The Atlantic Drive road has impressive panoramic views out to the Atlantic and its rugged coastline. The views inland aren't bad either!

Tip by

7

123 km

Wonderful views of Clew Bay

Highlight • Viewpoint

Fantastic panoramic views out to Clew Bay and beyond to the Atlantic ocean.

Tip by

B

180 km

End point

Parking

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Way Types & Surfaces

Way Types

105 km

52.5 km

21.5 km

361 m

106 m

101 m

Surfaces

172 km

7.73 km

276 m

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Elevation

Elevation

Nothing selected – click and drag below to see the stats for a specific part of the route.

Highest point (80 m)

Lowest point (0 m)

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Weather

Powered by Foreca

Thursday 7 May

12°C

7°C

18 %

Additional weather tips

Max wind speed: 20.0 km/h

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This route was planned by komoot.

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Frequently Asked Questions

How long does it take to cycle the Clew Bay and Achill Island loop?

The Komoot tour for this loop is approximately 180 km (112 miles) and is rated as difficult. While keen cyclists might attempt it in one long day, we recommend planning for two days to fully enjoy the diverse scenery, towns like Westport Town Centre and Newport, and the unique experience of the ferry crossings.

What is the terrain like on this cycling loop?

The terrain is quite varied. A significant portion follows the Great Western Greenway, which is a largely flat, paved, off-road path built on a former railway line. However, on Achill Island, you'll encounter local roads with moderate climbs and a particularly steep descent/ascent along the spectacular Atlantic Drive Road. Be prepared for some challenging sections, especially if you include the optional Clare Island loop.

Is the Clew Bay and Achill Island loop suitable for beginners?

Due to its length (180 km), significant elevation gain (1278m), and challenging sections on Achill Island, this full loop is rated as difficult and is not ideal for beginners. The Great Western Greenway sections are more accessible, but the entire route requires a medium to good level of fitness and experience with road cycling, including navigating some narrow Irish roads.

What are the best times of year to cycle this route?

The best time to cycle this loop is generally from late spring to early autumn (May to September). During these months, you'll typically find milder weather, longer daylight hours, and more reliable ferry schedules. Always check the local forecast before you go, as coastal weather in Ireland can change quickly.

Are dogs allowed on the Clew Bay and Achill Island loop?

While the Great Western Greenway sections are generally dog-friendly (on a leash), the full loop involves local roads and ferry journeys. Policies for dogs on ferries can vary, so it's crucial to check with the specific ferry operators for Clare Island and Achill Island in advance. Always keep your dog on a leash, especially near livestock and on shared paths.

Do I need any permits or pay entrance fees for this cycling route?

No, you do not need any specific permits or pay entrance fees to cycle the Clew Bay and Achill Island loop. However, you will need to pay for the ferry crossings to and from Clare Island, and potentially for the Achill Sound Bridge depending on your exact route, if not already included in a bike hire package. Bike hire is readily available in towns like Westport, Newport, Mulranny, and Achill.

Where can I start the Clew Bay and Achill Island loop, and is parking available?

The loop can be started at any point and cycled in either direction, offering great flexibility. Popular starting points include Westport Town Centre or Newport, both of which offer parking facilities. If you're renting a bike, the rental shop can often advise on the best starting location and parking options.

What kind of views and landmarks can I expect along the way?

This loop is renowned for its magnificent coastal scenery. You'll enjoy Wonderful views of Clew Bay, including View of Carrowmore Hill and Croagh Patrick. On Achill Island, the Atlantic Drive Road and Achill Coast Road offer breathtaking vistas of the Wild Atlantic coastline, sea cliffs, and sandy beaches. You'll also pass through charming towns and over the Achill Sound Bridge (Gob an Choire).

Does this trail intersect with other well-known cycling paths?

Yes, this loop incorporates significant sections of the Great Western Greenway, a world-class car-free path. It also overlaps with parts of the EuroVelo 1 and The National Coastal Trail, offering a diverse cycling experience that connects you to broader Irish and European cycling networks.

Are there places to eat and drink along the route?

Absolutely! The route passes through several towns and villages such as Westport Town Centre, Newport, Mulranny, and various settlements on Achill Island. These places offer a good selection of cafes, pubs, and restaurants where you can refuel and enjoy local hospitality. It's always a good idea to carry some snacks and water, especially for longer stretches between towns.

What should I wear and bring for cycling this loop?

Given the varied terrain and coastal weather, layers are key. Bring waterproof and windproof outer layers, even in summer. Padded cycling shorts are highly recommended for comfort on longer rides. Don't forget a helmet, sunglasses, sunscreen, a repair kit, plenty of water, and snacks. A charged phone and a map (or the Komoot app with the tour downloaded) are also essential.

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