Routes Planner Features Updates

Login or Signup

Login or Signup

Login or Signup

Running trails & routes

Radyr Weir – View of Castell Coch loop from Llandaf

Running trails & routes

Radyr Weir – View of Castell Coch loop from Llandaf

Moderate

17

runners

Radyr Weir – View of Castell Coch loop from Llandaf

01:25

13.1km

170m

Running

Moderate run. Good fitness required. Mostly paved surfaces. Suitable for all skill levels. The starting point of the route is accessible with public transport.

Last updated: August 6, 2026

Waypoints

A

Start point

Train Station

1

1.51 km

Melingriffith Water Wheel

Highlight • Historical Site

2

2.06 km

View of the River

Highlight • Viewpoint

Lots of lovely river views all down this trail. Great place for a daily run!

Tip by

3

3.22 km

Radyr Weir

Highlight • Structure

A pretty weir of the River Taff, the Radyr Weir runs today as a hydro power scheme and a focal point of Radyr town. Many wild salmon and sea trout …

Tip by

3.66 km

River Taff

Lake

5

4.98 km

View of Castell Coch

Highlight • Viewpoint

Castell Coch, or the ‘Red Castle’, rises up from the ancient beech woods of Fforest Fawr like a vision from a fairy tale. Yet these great towers with their unmistakable conical roofs only hint at the splendour within.

Tip by

6

5.04 km

First Light Coffee Shop

Highlight • Cafe

Great coffee in this tiny coffeehouse that loves walkers, runners & riders

Tip by

7

5.09 km

Castle Coch Descent

Highlight (Segment) • Castle

Really fun and beautiful descent down past Castle Coch. Catch it on a spring morning with sun breaking through the trees, truly spectacular. Smooth tarmac, not technical, flows very nicely.

Tip by

8

9.31 km

Forest Mountain Biking Trails

Highlight • MTB Park

B

13.1 km

End point

Train Station

Way Types & Surfaces

Way Types

5.55 km

2.88 km

2.13 km

1.51 km

609 m

328 m

< 100 m

Surfaces

7.22 km

5.63 km

105 m

< 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 (180 m)

Lowest point (20 m)

Sign up to see more specific route details

Sign up for free

Weather

Powered by Foreca

Sunday 18 October

14°C

7°C

38 %

Additional weather tips

Max wind speed: 22.0 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

3.9

541

Cardiff Bay Trail

00:47h

7.51km

40m

5.0

155

Poet's Path coastal path from Clevedon Lido

00:42h

7.27km

40m

4.8

126

Running loop through Bute Park along the River Taff from Cardiff Castle

00:41h

6.52km

20m

4.7

112

Caerleon Roman Amphitheatre running loop — Newport

01:24h

13.4km

70m

5

Rhondda Fach and Lluest-wen Reservoir Loop

02:23h

21.1km

380m

3

Tredegar House Park loop

00:21h

3.25km

10m

1,272

The Summerhouse Café – Secret Garden Café, Bute Park loop from Gabalfa

00:28h

4.48km

20m

3,336

Principality Stadium – Roath Park Lake loop from Cathays

02:25h

23.3km

90m

4.0

785

People's Bridge – The Senedd loop from Cogan

01:14h

12.0km

60m

5.0

839

Llandaff Weir – Blackweir Bridge and Weir loop from Radyr

02:10h

20.9km

90m

5.0

783

Running loop from Cardiff University

00:47h

7.57km

30m

5.0

577

Blackweir Bridge and Weir – Radyr Weir loop from Cathays

02:03h

19.2km

70m