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Radyr Weir – Caerphilly Castle loop from Ystrad Mynach

Radyr Weir – Caerphilly Castle loop from Ystrad Mynach

Moderate

riders

Radyr Weir – Caerphilly Castle loop from Ystrad Mynach

03:28

77.6km

700m

Road cycling

Moderate road ride. Good fitness required. Some segments of this route may be unpaved and difficult to ride. The starting point of the route is accessible with public transport.

Last updated: June 14, 2026

Tips

The surface along some of this route may not be suitable

Some segments of your route comprise a surface that may not be suitable for your chosen sport.

After 53.6 km for 228 m

After 54.1 km for 206 m

Waypoints

Start point

Train Station

Get Directions

1.06 km

Penallta Park Bike Path

Highlight (Segment) • Cycleway

The bike path through Penallta Park is a great alternative to the busy road. It’s also pretty peaceful as you come past the lakes.

Tip by

42.3 km

Baffle Haus

Highlight • Cafe

Great cafe on the A48, with plenty of space to lock up your bike as you head in for coffee, etc.

Tip by

44.7 km

Gwern-Y-Steeple Climb

Highlight (Segment) • Climb

Nice climb out of Gwern-Y-Steeple on wide road through the woodland.

Tip by

50.0 km

Stone Gateway

Highlight • Historical Site

53.7 km

Gwern y Cegyrn

Forest

54.2 km

Coed y Goetre

Forest

57.9 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

58.3 km

River Taff

Lake

61.5 km

Penrhos Cutting Cycle Path

Highlight (Segment) • Cycleway

A beautiful woodland ride along Penrhos Cutting cycle path linking Taffs Well and Caerphilly. Gentle gradient

Tip by

69.3 km

Caerphilly Castle

Highlight • Historical Site

Caerphilly Castle is one of the largest castles still standing in the country and it’s definitely worth a visit if you’re passing. Check ahead to see opening times.

Tip by

77.6 km

End point

Train Station

Way Types & Surfaces

Way Types

34.6 km

25.2 km

16.1 km

1.09 km

521 m

141 m

< 100 m

Surfaces

70.6 km

6.23 km

521 m

194 m

173 m

Elevation

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

Highest point (150 m)

Lowest point (20 m)

Weather

Saturday 20 June

25°C

13°C

0 %

Additional weather tips

Max wind speed: 5.0 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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Radyr Weir – Caerphilly Castle loop from Ystrad Mynach

Penallta Park Bike Path

Baffle Haus

Gwern-Y-Steeple Climb

Stone Gateway

Radyr Weir

Penrhos Cutting Cycle Path

Caerphilly Castle

Nearby routes

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