Routes Planner Features Updates

Login or Signup

Login or Signup

Login or Signup

Road cycling routes

Carmarthenshire

Swiss Valley Trail – Cwm Lliedi Reservoir loop from Drefach

Road cycling routes

Carmarthenshire

Swiss Valley Trail – Cwm Lliedi Reservoir loop from Drefach

Moderate

5

riders

Swiss Valley Trail – Cwm Lliedi Reservoir loop from Drefach

01:55

37.3km

460m

Road cycling

Moderate road ride. Good fitness required. Mostly well-paved surfaces and easy to ride. The starting point of the route is accessible with public transport.

Last updated: August 27, 2026

Waypoints

A

Start point

Bus stop

5.51 km

Coed Marchogllwyn

Forest

2

12.2 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

3

13.8 km

Swiss Valley Reservoir

Highlight • Structure

4

14.9 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

5

15.1 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

6

15.1 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

B

37.3 km

End point

Bus stop

Way Types & Surfaces

Way Types

16.4 km

15.1 km

5.01 km

877 m

< 100 m

Surfaces

21.6 km

15.8 km

< 100 m

< 100 m

Sign up to see more specific route details

Sign up for free

Elevation

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

Highest point (210 m)

Lowest point (10 m)

Sign up to see more specific route details

Sign up for free

Weather

Powered by Foreca

Thursday 22 October

12°C

7°C

97 %

Additional weather tips

Max wind speed: 51.0 km/h

to get more detailed weather forecasts along your route

Comments

Want to know more?

Sign up for a free komoot account to join the conversation.

Sign up for free

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

Navigate Send to Phone

Move start point

Embed on a website

Report an Issue

Report restricted access

Nearby routes

5.0

1,304

Swansea Ironman route

04:12h

90.6km

910m

4.3

299

Gower loop from Swansea — Gower

03:31h

78.6km

740m

4.7

164

Swansea Marina to the Mumbles loop

01:45h

31.6km

280m

5.0

96

Devil's Elbow and Bwlch Bryn-Rhudd loop from Swansea

04:14h

91.4km

990m

5.0

27

Swansea Marina to Devil's Elbow loop

04:55h

106km

1,210m

37

Ferryside from Llanelli loop

02:17h

49.3km

470m

5.0

27

Black Mountain climb loop from Llandeilo

02:34h

42.9km

900m

36

Nantgaredig loop from Carmarthen Velo

00:59h

22.0km

150m

5.0

11

Carmarthen Bay Coastal loop from Pembrey Country Park

03:14h

64.1km

840m

16

2019 OVO Energy Women's Tour - Carmarthenshire loop

05:12h

104km

1,370m

5.0

10

Ammanford to Llandovery loop via Climb into the Black Mountain

04:05h

76.2km

1,190m

5.0

13

Waun Las loop from Carmarthen Velodrome

03:34h

72.7km

820m