Atlantic Coast Route: Carmarthen, Laugharne and Llansteffan Loop
Atlantic Coast Route: Carmarthen, Laugharne and Llansteffan Loop
2
riders
04:36
70.9km
910m
Cycling
Cycle the difficult 44.0-mile Poets & Castles loop from Carmarthen to Laugharne, exploring historic castles and Dylan Thomas's legacy.
Last updated: February 26, 2026
Waypoints
Start point
Train Station
Get Directions
14.6 km
Highlight • Viewpoint
Tip by
18.2 km
Highlight • Viewpoint
Tip by
42.3 km
Highlight • Historical Site
Tip by
42.9 km
Highlight • Viewpoint
Tip by
70.9 km
End point
Train Station
Way Types & Surfaces
Way Types
55.6 km
7.22 km
6.42 km
1.49 km
163 m
< 100 m
Surfaces
65.2 km
4.59 km
1.01 km
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Elevation
Highest point (160 m)
Lowest point (0 m)
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Weather
Powered by Foreca
Monday 18 May
16°C
11°C
81 %
Additional weather tips
Max wind speed: 35.0 km/h
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This route was planned by komoot.
This route is rated as difficult for touring bicycles. You'll encounter diverse terrain, including quiet country lanes, hilly sections with gradients over 10%, and potentially some unpaved or gravel segments. It requires good fitness, especially given the 909 meters of elevation gain.
The terrain is varied, featuring quiet country lanes, significant hilly sections, and potentially some unpaved or gravel paths. While some initial sections out of Carmarthen may be flatter, expect challenging climbs, particularly in areas like the Tywi Valley. Some coastal path sections in the broader area can be muddy.
The route is rich in history and scenic views. You'll pass by impressive castles such as the ruined Llansteffan Castle, offering superb estuary views, and the medieval Laugharne Castle. In Laugharne, you can also visit the iconic Dylan Thomas Boathouse. Additionally, look out for the View of Cefn Sidan Sand Flats and picturesque estuary views across the Taf estuary.
The loop starts and ends in Carmarthen. You can find parking options within Carmarthen town centre. As this is a loop, you'll return to your starting point.
Carmarthenshire offers beautiful scenery year-round, but for cycling, spring and summer (April to September) generally provide the most favorable weather conditions. This avoids the potentially muddy coastal sections and ensures more comfortable temperatures for the significant climbs.
While the route primarily follows public roads and paths, specific sections may have restrictions or require dogs to be on a leash, especially when passing through farmland or nature reserves. If cycling with a dog, ensure they are comfortable with longer distances and varied terrain, and always clean up after them.
No, there are no specific permits or entrance fees required to cycle the Poets & Castles loop itself, as it uses public rights of way. However, individual attractions like castles or the Dylan Thomas Boathouse may have their own admission fees if you choose to enter them.
Yes, the route incorporates sections of several official cycling paths. You'll find it overlaps significantly with the EuroVelo 1 - Atlantic Coast Route - part United Kingdom 2 (56% of the route) and National Cycle Network Route 4 (48% of the route). Smaller sections also follow National Cycle Network Route 47 and Dylan's Birthday Walk.
Yes, both Carmarthen and Laugharne offer various amenities. You'll find bike-friendly cafes, pubs, and accommodations in these towns. It's advisable to plan your stops, especially in Laugharne, to enjoy the local offerings and refuel during your ride.
Given its 'difficult' rating, significant elevation gain, and varied terrain including steep climbs, this specific loop is generally not recommended for families with young children or those seeking an easy ride. It requires very good fitness. However, the region offers many easier, family-friendly cycling options if you're looking for alternatives in Carmarthenshire.
For this challenging route, bring plenty of water, snacks, and appropriate cycling gear for varied weather conditions. A repair kit, spare inner tube, and pump are essential. Given the hilly terrain, a bike with suitable gearing is recommended. Don't forget a camera for the stunning views and historical sites!