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Routes
Bike touring routes & trails
United Kingdom
Wales
South Wales
Rhondda Cynon Taf
Abercynon

Pontsarn Viaduct – Pontsticill Reservoir loop from Abercynon

Routes
Bike touring routes & trails
United Kingdom
Wales
South Wales
Rhondda Cynon Taf
Abercynon

Pontsarn Viaduct – Pontsticill Reservoir loop from Abercynon

Hard

5.0

(2)

65

riders

Pontsarn Viaduct – Pontsticill Reservoir loop from Abercynon

04:19

65.6km

680m

Cycling

Hard bike ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels. The starting point of the route is accessible with public transport.

Last updated: February 24, 2026

Tips

Includes segments that go up or down a series of steps

You may need to carry your bike.

After 64 m for 44 m

After 65.6 km for 44 m

Waypoints

A

Start point

Train Station

Get Directions

1

24.5 km

Pontsarn Viaduct

Highlight • Historical Site

Good ride

Tip by

2

28.7 km

Taff Trail: Elevated View of Pontsticill Reservoir

Highlight (Segment) • Viewpoint

A superb off-road section which is a great alternative to the road. You can't see much of the reservoir from the road due to the trees on its bank. A …

Tip by

34.4 km

Pontsticill Reservoir

Lake

4

36.4 km

Pontsticill Reservoir

Highlight • Structure

Built in 1927, the Pontsticill Reservoir is a large reservoir in the Brecon Beacons National Park that can hold 3400 million gallons (14,460 million liters) of water. The beautiful reservoir …

Tip by

5

39.7 km

Pontsticill Reservoir Dam and Tower

Highlight • Structure

This reservoir is located in the breathtaking Brecon Beacons of Wales. It is part of a series of reservoirs within the Taff Fechan Valley and was constructed between 1923 and …

Tip by

6

41.4 km

Merthyr Tydfil Cycle Path

Highlight (Segment) • Trail

A beautiful cycle path between Merthyr and Pontsticill Reservoir. The very start of the track at the Merthyr end is narrow and steep (you need to watch out for pedestrians), …

Tip by

7

61.3 km

View of the Giant's Bite from the Low Trail

Highlight • Viewpoint

B

65.6 km

End point

Train Station

Loading

Way Types & Surfaces

Way Types

38.2 km

15.2 km

5.44 km

4.12 km

2.42 km

235 m

Surfaces

49.1 km

9.72 km

5.62 km

1.19 km

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Elevation

Elevation

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

Highest point (390 m)

Lowest point (80 m)

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Weather

Powered by Foreca

Wednesday 20 May

20°C

11°C

19 %

Additional weather tips

Max wind speed: 15.0 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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