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Pontsticill Reservoir – Pontsticill Reservoir loop from Merthyr Tydfil

Routes

Running trails & routes

Pontsticill Reservoir – Pontsticill Reservoir loop from Merthyr Tydfil

Hard

runners

Pontsticill Reservoir – Pontsticill Reservoir loop from Merthyr Tydfil

02:32

22.7km

370m

Running

Hard run. 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: May 9, 2026

Tips

Your route passes through protected areas

Please check local regulations for:

Bannau Brycheiniog National Park

Cwm Taf Fechan Woodlands Site of Special Scientific Interest

Waypoints

Start point

Bus stop

Get Directions

3.70 km

Pontsarn Viaduct

Highlight • Historical Site

Good ride

Tip by

3.79 km

Pontsarn Viaduct

Highlight • Monument

Pontsarn Viaduct was built in the 1860s to carry the Brecon and Merthyr Railway over the Taf Fechan river. The viaduct has seven arches and is situated in a very picturesque landscape.

Tip by

7.47 km

Pontsticill Reservoir

Highlight • Structure

Pontsticill Reservoir is a great location for its scenic beauty and because it is the start of many hiking and biking trails. There is a nice trail that actually goes …

Tip by

7.59 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

9.11 km

West Shore Road, Pontsticill Reservoir

Highlight (Segment) • Trail

If you're not equipped for the gravel track on the East shore of Pontsticill Reservoir, the road on the West shore offers a fun tarmac alternative. A nice long straight …

Tip by

10.9 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

11.3 km

Pentwyn Reservoir

Highlight • Lake

Pentwyn Reservoir is the smaller sister to Pontsticill Reservoir, both being separated by a causeway going towards the old Dolygaer outdoor centre. It is a very popular spot with fishermen …

Tip by

11.9 km

Pontsticill Reservoir at Dol-y-gaer

Highlight • Viewpoint

Nice little descent down to the side of the Pontscill Reservoir.

Tip by

13.0 km

Pontsticill Reservoir

Lake

22.7 km

End point

Bus stop

Way Types & Surfaces

Way Types

13.4 km

6.36 km

2.28 km

660 m

< 100 m

Surfaces

16.6 km

4.32 km

1.34 km

268 m

< 100 m

Elevation

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

Highest point (440 m)

Lowest point (210 m)

Weather

Monday 6 July

25°C

13°C

0 %

Additional weather tips

Max wind speed: 13.0 km/h

to get more detailed weather forecasts along your route

Comments

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Pontsticill Reservoir – Pontsticill Reservoir loop from Merthyr Tydfil

Pontsarn Viaduct

Pontsarn Viaduct

Pontsticill Reservoir

Pontsticill Reservoir Dam and Tower

West Shore Road, Pontsticill Reservoir

Pontsticill Reservoir

Pentwyn Reservoir

Pontsticill Reservoir at Dol-y-gaer

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