Routes

Planner

Features

Updates

App

Get the App

Routes

Running trails & routes

View of Castell Coch – Radyr Weir loop from Aber

Routes

Running trails & routes

View of Castell Coch – Radyr Weir loop from Aber

Hard

runners

View of Castell Coch – Radyr Weir loop from Aber

02:19

21.5km

160m

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: April 19, 2026

Waypoints

Start point

Train Station

Get Directions

5.15 km

Taff Trail Junction

Highlight • Cycleway

The Taff Trail runs for 55 miles between Cardiff and Brecon along a mixture of riverside paths, railway paths and forest roads.

Tip by

7.28 km

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

8.60 km

River Taff

Lake

9.04 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

9.61 km

Blue Bridge, Radyr

Highlight • Bridge

Narrow bridge which is next to Radyr train station.
Becareful of other users.

Tip by

10.9 km

Melingriffith Water Wheel

Highlight • Historical Site

10.9 km

Melingriffith Watermill and Radyr Weir

Highlight (Segment) • Monument

2 pieces of Cardiff / River Taff history. The old watermill & the weir.

Tip by

14.4 km

First Light Coffee Shop

Highlight • Cafe

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

Tip by

16.5 km

Wooded section of the Taff Trail

Highlight (Segment) • Trail

taff trail is lovely . small sections can be industrial, however I found this section through the trees particularly beautiful 🌳

Tip by

21.5 km

End point

Train Station

Way Types & Surfaces

Way Types

12.8 km

3.91 km

2.43 km

930 m

830 m

572 m

Surfaces

16.7 km

3.43 km

1.03 km

279 m

Elevation

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

Highest point (120 m)

Lowest point (20 m)

Weather

Friday 8 May

19°C

8°C

17 %

Additional weather tips

Max wind speed: 12.0 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.

Navigate

Send to Phone

Save

Edit route

Download GPX

Move start point

Embed on a website

Report an Issue

Nearby routes

Moderate

3.9

492

Cardiff Bay Trail

00:47h

7.51km

40m

Moderate

5.0

145

Poet's Path coastal path from Clevedon Lido

00:42h

7.27km

40m

Moderate

4.8

113

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

00:41h

6.52km

20m

Moderate

4.5

102

Caerleon Roman Amphitheatre running loop — Newport

01:24h

13.4km

70m

Moderate

5.0

Wentwood Forest and Wentwood Ridge running loop

01:24h

11.5km

190m

Moderate

5.0

Pontsticill Reservoir loop

01:22h

11.8km

250m

Hard

Rhondda Fach and Lluest-wen Reservoir Loop

02:23h

21.1km

380m

Easy

Tredegar House Park loop

00:21h

3.25km

10m

Moderate

335

Pathway Along the River Taff – The Summerhouse Café loop from Companies House

00:47h

7.62km

20m

Easy

1,106

The Summerhouse Café – Secret Garden Café, Bute Park loop from Companies House

00:28h

4.48km

20m

Hard

3,215

Principality Stadium – Roath Park Lake loop from Cathays

02:25h

23.5km

90m

Hard

752

Llandaff Weir – Blackweir Bridge and Weir loop from Radyr

02:09h

20.6km

90m

View of Castell Coch – Radyr Weir loop from Aber

Taff Trail Junction