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Running Trails

United Kingdom

Carmarthenshire

Carmarthenshire

The best running trails in Carmarthenshire

511runs

4.4

(28)

5,481 people ran here

Running in Carmarthenshire is one of the best ways to explore more of this region. To help you discover the most beautiful places to run, we’ve reviewed our full collection of routes in Carmarthenshire—and are proud to present the best running trails. Click on any of the routes for more details and browse real tips and photos uploaded by other runners.

Llyn Llech Owain Reservoir loop	Intermediate 00:37 5.02km
Pembrey Country Park loop	Intermediate 01:14 11.1km
Dinefwr Castle, Park & Castle Woods loop from Llandeilo	Intermediate 00:44 5.97km
Pembrey Forest loop from Burry Port — Wales Coast Path	Expert 02:11 19.3km
Running loop from Sandy	Intermediate 00:49 7.88km
North Dock – Morolwg Pond loop from Pembrey	Expert 03:31 34.2km
North Dock – Tywyn Bâch loop from Burry Port	Expert 01:46 17.1km
Pont Twym – Tywyn Bâch loop from Llanelli	Expert 01:44 16.7km
North Dock – Llanelli Wetland Centre loop from Sandy	Expert 01:45 17.0km

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Map data © OpenStreetMap contributors
1
1
Llyn Llech Owain Reservoir loop
00:37
5.02km
7:20/km
40m
40m
Intermediate
20
Intermediate run. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.
Map data © OpenStreetMap contributors
2
2
Pembrey Country Park loop
01:14
11.1km
6:39/km
50m
50m
Intermediate
6
Intermediate run. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.

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Map data © OpenStreetMap contributors
3
3
Dinefwr Castle, Park & Castle Woods loop from Llandeilo
00:44
5.97km
7:17/km
110m
110m
Intermediate
5.0
(2)
5
Intermediate run. Good fitness required. Mostly accessible paths. Some sure footedness required.
Map data © OpenStreetMap contributors
4
4
Pembrey Forest loop from Burry Port — Wales Coast Path
02:11
19.3km
6:49/km
60m
60m
Expert
5
Expert run. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
Map data © OpenStreetMap contributors
5
5
Running loop from Sandy
00:49
7.88km
6:11/km
20m
20m
Intermediate
5.0
(1)
364
Intermediate run. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.
Map data © OpenStreetMap contributors
6
6
North Dock – Morolwg Pond loop from Pembrey
03:31
34.2km
6:11/km
90m
90m
Expert
265
Expert run. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
Map data © OpenStreetMap contributors
7
7
North Dock – Tywyn Bâch loop from Burry Port
01:46
17.1km
6:12/km
50m
50m
Expert
174
Expert run. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
Map data © OpenStreetMap contributors
8
8
Pont Twym – Tywyn Bâch loop from Llanelli
01:44
16.7km
6:11/km
50m
50m
Expert
170
Expert run. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
Map data © OpenStreetMap contributors
9
9
North Dock – Llanelli Wetland Centre loop from Sandy
01:45
17.0km
6:11/km
40m
40m
Expert
146
Expert run. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.

Map data © OpenStreetMap contributors

Fan Foel – Llyn y Fan Fach loop from Llanddeusant

02:00

14.9km

8:06/km

640m

Expert

Expert run. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.

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Last updated:

September 10, 2025

Our route recommendations are based on thousands of hikes, rides, and runs completed by other people on komoot.

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Didn’t find what you were looking for? Check out more Running Trails & Routes throughout Carmarthenshire below and find the perfect route in your destination.

Explore more of South Wales: Browse the best Running Trails & Routes in other regions.

The best running trails in Carmarthenshire

Llyn Llech Owain Reservoir loop

Pembrey Country Park loop

Let us show you the way with the komoot mobile app

Dinefwr Castle, Park & Castle Woods loop from Llandeilo

Pembrey Forest loop from Burry Port — Wales Coast Path

Running loop from Sandy

North Dock – Morolwg Pond loop from Pembrey

North Dock – Tywyn Bâch loop from Burry Port

Pont Twym – Tywyn Bâch loop from Llanelli

North Dock – Llanelli Wetland Centre loop from Sandy