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Caerphilly Castle – Radyr Weir loop from Marshfield

Routes

Bike touring routes & trails

Caerphilly Castle – Radyr Weir loop from Marshfield

Moderate

4.8

(18)

riders

Caerphilly Castle – Radyr Weir loop from Marshfield

03:06

50.4km

400m

Cycling

Moderate bike ride. 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 16, 2026

Tips

Includes a segment in which cycling is not permitted

After 17.3 km for 186 m

Waypoints

Start point

Bus stop

Get Directions

5.53 km

Coed y Goitre

Forest

5.85 km

View of Rural Landscape Near Cardiff

Highlight • Viewpoint

Mostly tarmac

Tip by

13.3 km

River Rhymney Cycle Trail

Highlight • Cycleway

This paved shared-use trail alongside the River River Rhymney is a really delightful way to avoid the busy Newport Road on the other side of the industrial estate, and you …

Tip by

17.5 km

Caerphilly Castle is one of the most complete, still standing castles in South Wales. You can park for free at Morrisons just up the road, and entry is free on certain days. It's worth checking ahead!

Tip by

20.3 km

Forest Cycle Path

Highlight • Cycleway

Great steady cycle way, good for getting the kids out

Tip by

21.3 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

26.3 km

Castell Coch

Highlight • Historical Site

Castell Coch is a 19th-century castle overlooking the village of Tongwynlais. Whilst there has been a castle on the site since the Norman period, architect William Burges transformed the crumbling …

Tip by

28.6 km

River Taff

Lake

29.0 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

32.8 km

Llandaff Weir

Highlight • Natural

Llandaff Weir on the River Taff was built in the mid 1800s to help control the flow and water levels upstream. It was built in a dangerous rapid part of the river which had previously claimed several lives.

Tip by

35.2 km

Blackweir Woods

Forest

50.4 km

End point

Bus stop

Way Types & Surfaces

Way Types

27.3 km

15.0 km

5.66 km

2.42 km

149 m

Surfaces

39.4 km

10.6 km

248 m

224 m

< 100 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 (0 m)

Weather

Tuesday 7 July

31°C

16°C

0 %

Additional weather tips

Max wind speed: 12.0 km/h

to get more detailed weather forecasts along your route

Comments

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

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Caerphilly Castle – Radyr Weir loop from Marshfield

View of Rural Landscape Near Cardiff

River Rhymney Cycle Trail