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Hiking trails & Routes

Carmarthenshire

Cwm Lliedi Reservoir – Swiss Valley Trail loop from Llanelli

Hiking trails & Routes

Carmarthenshire

Cwm Lliedi Reservoir – Swiss Valley Trail loop from Llanelli

Moderate

12

hikers

Cwm Lliedi Reservoir – Swiss Valley Trail loop from Llanelli

03:20

12.6km

110m

Hiking

Moderate hike. Good fitness required. Easily-accessible paths. Suitable for all skill levels. The starting point of the route is accessible with public transport.

Last updated: February 20, 2026

Waypoints

A

Start point

Bus stop

Get Directions

1

3.41 km

Cwm Lliedi Reservoir

Highlight • Lake

This beautiful reservoir is framed by the stunning mountain scenery of the Brecon Beacons. From the vantage point of the Swidd Valley Trail, you can enjoy a great view of the reservoir and its picturesque surroundings.

Tip by

2

3.71 km

Swiss Valley Trail

Highlight • Cycleway

You get a temperature drop as your ride through this cutting in the rocks. Great on a warm day but can be chilly at other times.

Tip by

3

4.75 km

Swiss Valley Reservoir

Highlight • Structure

4

5.31 km

Steve

Highlight • Other

5

6.34 km

Disused Kiln and Chimney

Highlight • Historical Site

disused kiln, hidden in wood to side of trail very overgrown but worth a look,

Tip by

6

9.19 km

Swiss Valley Reservoir (Lower Lliedi Reservoir)

Highlight • Cycleway

Great place to canoe or SUP. Organised tours can be arranged or you can self-launch, with permission.

Tip by

B

12.6 km

End point

Bus stop

Way Types & Surfaces

Way Types

8.06 km

2.91 km

1.40 km

235 m

Surfaces

7.64 km

1.97 km

1.95 km

863 m

178 m

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Elevation

Elevation

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

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Weather

Powered by Foreca

Friday 15 May

13°C

6°C

87 %

Additional weather tips

Max wind speed: 25.0 km/h

to get more detailed weather forecasts along your route

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

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