Limerick to Westport: Ultimate Road Trip Guide

The drive from Limerick to Westport covers approximately 200 kilometers via the M18, N17, and N5 roads, a journey that typically takes around 2.5 hours without stops. This route traverses the ancient kingdom of Connacht, passing through landscapes shaped by the last Ice Age and dotted with megalithic tombs dating back over 5,000 years. Along the way, you'll cross the River Shannon at Limerick, Ireland's longest river, and skirt the edge of the Burren, a unique karst limestone region that resembles a lunar landscape.

Understanding the nuances of this route—from fuel efficiency to hidden viewpoints—transforms a simple drive into an immersive travel experience. Below, we break down every aspect to help you plan an unforgettable journey. For more tips, see how to find the best stops and hidden gems between cities.

Leaving Limerick, you'll pass through the lush Golden Vale before entering the Burren region near Gort. This limestone plateau is home to rare Arctic-Alpine flowers and over 90% of Ireland's plant species. Nearby, the Cliffs of Moher (a short detour) offer breathtaking Atlantic views.

• The Burren National Park: Free entry, marked walking trails.
• Dunguaire Castle: A 16th-century tower house in Kinvara.
• Aughnanure Castle: A well-preserved O'Flaherty fortress in Oughterard.

Continuing north, the landscape softens into drumlin countryside around Claremorris. This area is rich in archaeological sites, including the Neolithic Ceide Fields (a UNESCO World Heritage candidate). Local commerce thrives on farming and craft food; stop at a roadside stall for fresh cheese or artisan bread.

The journey from Limerick to Westport is primarily on National roads (N roads) with some motorway sections. The M18 from Limerick to Gort offers a fast dual carriageway, followed by the N17 through Galway and onwards to Claremorris, then the N5 into Westport. Road quality is generally excellent, with smooth asphalt and clear signage.

• Toll roads: None on this route, though the M18 is toll-free.
• Fuel stations: Frequent along the N17 and N5; last station before Westport in Castlebar.
• Electric vehicle charging: Rapid chargers in Limerick, Gort, Claremorris, and Westport.

Driving time can increase to 3-4 hours with stops. Plan for traffic around Galway city, especially during rush hours. The route is well-suited for all vehicle types, including campervans. For real-time traffic updates, use local radio stations like Galway Bay FM.

Roads are generally safe but require attention: narrow single-carriageway sections, sudden bends, and livestock crossings. Speed limits: 100 km/h on N roads but slower through towns. Always wear seat belts, and avoid using phones while driving.

• Emergency contact: 112 or 999.
• Tips: Use daytime running lights, especially in rain.

For families, excellent stops include Galway Atlantaquaria (Ireland's largest aquarium) and Brigit's Garden, a magical Celtic-themed woodland. Pet-friendly options: Loughrea Lake Walk and the dog-friendly beaches of Westport (e.g., Carrowmore Beach).

• Rest zones: Designated lay-bys every 20 km; main services at Junction 18 (M18) and Claremorris.
• Fatigue management: Take a break every 2 hours; use the 'Stop, Sip, Sleep' campaign.

Hidden off-route spots include the ruined Abbey at Knockmoy (off N17) and the stunning Killary Fjord (tack on extra 30 min from Westport). For local culture, the Connemara Mussel Festival (May) or Westport Folk Music Session (weekly) immerse you in authentic Irish heritage.