Visiting Ireland's Castles by Bike
Castle-heavy routes on the Boyne Valley Greenway, the Waterford Greenway and the Atlantic coast, with the history behind each stop on the way.
Introduction
Ireland has, depending on who is counting, over 30 000 castles, from medieval fortresses to 19th-century mansions built mostly for show. A good number of them sit within a few kilometres of a greenway or a quiet country lane, which makes them easy to string together on a bike. Four routes are covered below, with the details that actually matter on the day: surface, distance, bike hire, and how far off the trail each castle really is.
Why cycle the castles?
- Low-impact travel lets you soak up the landscape and history at your own pace.
- Greenways keep you off busy roads while providing smooth surfaces for road, hybrid or gravel bikes.
- Many castle sites have bike-friendly parking, cafés and visitor centres, which makes them useful mid-day stops.
Bring a map or a GPX file. Several of the castles below sit on side roads off the main route, and the turn-offs are easy to ride past.
1. Boyne Valley Greenway: From Drogheda to Navan
Overview
- Length: 23 km (mostly traffic-free, paved surface)
- Difficulty: Easy-moderate; gentle gradients, ideal for families and road-bike enthusiasts.
- Best time to ride: Late spring to early autumn when the riverbanks are lush and the days are long.
Castles on the route
| Castle | Location | Historical highlight | Quick tip |
|---|---|---|---|
| Trim Castle | Trim, Co. Meath (≈ 12 km from Navan) | Largest Anglo-Norman castle in Ireland, built 1176 by Hugh de Lacy; featured in Braveheart. | Park in the car-park beside the River Boyne; take the 30-minute guided tour before heading back. |
| Dunboyne Castle | Near Navan (≈ 5 km from start) | 16th-century tower house, now part of a private estate with public walking trails. | Use the off-road path that skirts the estate, watch for livestock. |
| Hill of Tara (nearby) | Ancient ceremonial site, not a castle but worth a detour. | Mythical seat of the High Kings of Ireland. | Short 2 km loop from the greenway; perfect for a photo stop. |
Practical info
- Bike hire: Navan Cycle Hub offers hybrid and gravel bikes for €15 / day.
- Facilities: Restrooms at Drogheda and Navan, cafés at the Boyne Heritage Centre.
- Navigation: Download the Boyne Greenway GPX from the Meath County Council site, it marks all castle parking bays.
2. The Wild Atlantic Way: Coastal Castle-Hopping
Overview
- Length: 2 500 km total; the most popular cycling stretch is the Mizen Head to Galway segment (≈ 260 km).
- Surface: Mix of paved roads, quiet country lanes and occasional gravel sections.
- Difficulty: Moderate to hard, expect strong winds, climbs and occasional rain.
Key castles along the Atlantic stretch
| Castle | County | Access from the route | Highlights |
|---|---|---|---|
| Dunguaire Castle | Galway (near Kinvara) | 5 km off the coastal road R458; signposted turn-off. | 16th-century tower house with a lively music venue in summer. |
| Ross Castle | Kerry (Killarney) | Directly on the Ring of Kerry, 30 km from the main Atlantic Way. | 15th-century O’Donoghue fortress overlooking Lough Leane; boat tours available. |
| Dunluce Castle | Antrim (Causeway Coast) | 10 km from the A2 coastal road; large car park. | Dramatic cliff-top ruins with legends of the “Dunluce Lady”. |
| Carrickfergus Castle | Antrim | 20 km north of Belfast; reachable via the Belfast-to-Derry coastal route. | One of the best-preserved Norman castles in Ireland, built 1177. |
| Bunratty Castle | Clare (near Shannon) | 15 km inland from the coastal road; shuttle bus from the greenway. | Fully restored 15th-century castle with a medieval folk park. |
Practical tips for the Atlantic Way
- Bike type: Endurance road bikes or gravel bikes with wider tyres (35-45 mm) handle the occasional gravel and strong winds.
- Accommodation: Many castles (e.g., Dunguaire, Bunratty) run guest houses or partner with nearby B&Bs, book early in summer.
- Weather: The Atlantic side can be windy; pack waterproof panniers and a wind-proof jacket.
- Navigation: Use the Wild Atlantic Way app (free), it offers GPX tracks, castle icons and tide information for coastal sections.
3. Waterford Greenway: Viking Roots to Victorian Splendour
Overview
- Length: 46 km, fully paved, former railway line from Waterford to Dungarvan.
- Difficulty: Easy, flat gradients, ideal for road bikes, e-bikes and families.
Castles and historic sites along the trail
| Castle | Spot on the Greenway | Highlights |
|---|---|---|
| Waterford City Castle (Reginald’s Tower) | At the Waterford terminus, 0 km. | Oldest civic building in Ireland (c. 1250); houses the Viking Museum. |
| Mount Congreve Gardens (near Dungarvan) | 30 km mark, short off-road detour. | While not a castle, the 18th-century estate features a fortified gatehouse and extensive gardens. |
| Dunhill Castle (near Coshmore) | 15 km, signposted side path. | Ruins of a 13th-century tower house, now a quiet picnic spot. |
| Lismore Castle (a short drive from the trail) | 10 km north of the greenway, reachable by local bus. | 12th-century castle rebuilt in Gothic style; famed for its 19th-century telescope. |
Practical info
- Bike hire: Waterford Cycle Hire offers e-bikes (ideal for the 46 km stretch) from €20 / day.
- Facilities: Water stations at Kilmeaden and Dungarvan; cafés at the former railway stations.
- Map resources: The Waterford Greenway PDF from the Irish Rail website includes castle icons and wheelchair-accessible routes.
4. Great Western Greenway: Mayo’s Scenic Loop
Overview
- Length: 42 km, from Westport to Achill Island via Newport.
- Surface: Smooth tarmac, former railway line; suitable for road, hybrid and e-bikes.
- Difficulty: Moderate, gentle climbs, occasional headwinds on the Atlantic side.
Castle highlights
| Castle | Proximity to the Greenway | Notable facts |
|---|---|---|
| Westport House | 2 km north of Westport start point. | 18th-century mansion built on the site of a 13th-century castle; hosts a “pirate” adventure trail. |
| Moyne Castle (Mullaghmore) | 10 km from Newport, short side road. | Ruined tower house perched on a cliff, offering dramatic sea views. |
| Achill Castle (Keem Bay) | 5 km from Achill’s coastal road, accessible via a short bike-friendly lane. | Small 15th-century tower house, now a private residence; exterior view is free. |
| Castlebar Castle (Ruins) | 5 km west of Castlebar, signposted from the greenway. | 15th-century tower house, now a public park with a café. |
Practical tips
- Bike type: Hybrid or gravel bikes with 28-mm tyres give comfort on the occasional gravel sections near Achill.
- Accommodation: Westport has a range of B&Bs and a historic hotel housed in a former manor.
- Navigation: The Great Western Greenway guide on the Irish Rail site includes a GPX file with castle waypoints.
5. Planning Your Castle-Crashing Cycling Holiday
| Consideration | Recommendation |
|---|---|
| Bike choice | Road bikes for flat greenways; gravel bikes for coastal routes; e-bikes for longer days (especially the Wild Atlantic Way). |
| Packing | Panniers (not a backpack) for balance; waterproof clothing; basic repair kit (multi-tool, spare tube, CO₂ inflator). |
| Navigation | Combine a dedicated cycling app (Komoot, Ride with GPS) with the GPX files linked above. Print a small map of each route’s castles as a backup. |
| Accommodation | Mix castle hotels (e.g., Ashford Castle, Dunguaire Castle) with local B&Bs for variety and cost-effectiveness. Book 2-3 weeks in advance for summer. |
| Food & Hydration | Stock up on energy bars and water at larger towns; most castle sites have cafés or picnic areas. |
| Safety | Wear a certified helmet, high-visibility clothing, and front/back lights (even on daylight). Check weather forecasts; Irish weather can change rapidly. |
| Cultural etiquette | Many castles are still private residences or host events; respect “no-bike” zones and stay on marked paths. |
6. Sample 7-Day Itinerary (Boyne + Atlantic Blend)
| Day | Route | Castles visited | Distance |
|---|---|---|---|
| 1 | Drogheda → Navan (Boyne Greenway) | Trim Castle, Hill of Tara (detour) | 23 km |
| 2 | Navan → Kilcock (rail-trail) | Dunboyne Castle, Duncreggan Castle (short side road) | 30 km |
| 3 | Transfer to Galway (train) | Dunguaire Castle | - |
| 4 | Galway → Kinvara (coastal road) | Dunguaire Castle, Athenry Castle (detour) | 45 km |
| 5 | Kinvara → Killarney (via Limerick) | Ross Castle, Bunratty Castle | 150 km (split into two days if needed) |
| 6 | Killarney → Dungarvan (Wild Atlantic Way) | Ross Castle, Bunratty Castle (again for deeper explore) | 120 km |
| 7 | Dungarvan → Waterford (Waterford Greenway) | Waterford City Castle, Mount Congreve Gardens | 46 km |
Adjust distances and rest days based on fitness level; the itinerary mixes greenways with scenic coastal roads for variety.
Conclusion
These are four very different rides. The Boyne Valley Greenway is flat, paved and short enough for a family day out. The Wild Atlantic Way is none of those things, and the headwind alone can turn a comfortable day into a long one, so plan shorter stages than the distances suggest.
Book summer accommodation two to three weeks ahead, carry a repair kit, and accept that some of these castles will be closed, roped off or still somebody’s house when you arrive. That comes with the territory.