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Caerphilly Castle – Radyr Weir loop from Caerphilly

Caerphilly Castle – Radyr Weir loop from Caerphilly

Hard

riders

Caerphilly Castle – Radyr Weir loop from Caerphilly

04:33

95.5km

1,040m

Road cycling

Hard road ride. Very good fitness required. Mostly well-paved surfaces and easy to ride. The starting point of the route is accessible with public transport.

Last updated: July 1, 2026

Tips

Includes a very steep uphill segment

You may need to push your bike.

After 28.7 km for 70 m

Waypoints

Start point

Train Station

Get Directions

691 m

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

5.13 km

Coed Caedyrys

Forest

28.6 km

The Castle Climb

Highlight (Segment) • Climb

Short sharp climb up through the woods. Steep but satisfying.

Tip by

42.5 km

Ogmore-by-Sea Beach

Highlight • Settlement

Nice little village with a nice beach. Usually ice cream in the car park. Wouldn't advise passing on a busy summer's day, roads are liable to gridlock!

Tip by

58.6 km

Great little café, very bike friendly. There's a load of bike locks hanging on the wall just inside the door that the owner provides to allow you to secure your bike outside - not that it's in a dodgy area anyway - situated in a quiet village square.
If there's cycling racing on TV, this is a great place to watch it with like minded folk.

Tip by

71.9 km

Gwern-Y-Steeple Climb

Highlight (Segment) • Climb

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

Tip by

77.2 km

Stone Gateway

Highlight • Historical Site

86.3 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 can be found at the Weir, as well as grey herons and cormorants.

Tip by

86.7 km

River Taff

Lake

89.8 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

95.5 km

End point

Train Station

Way Types & Surfaces

Way Types

71.0 km

15.0 km

5.96 km

3.40 km

158 m

< 100 m

Surfaces

92.0 km

3.40 km

207 m

Elevation

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

Highest point (130 m)

Lowest point (10 m)

Weather

Friday 24 July

24°C

12°C

12 %

Additional weather tips

Max wind speed: 24.0 km/h

to get more detailed weather forecasts along your route

Comments

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Caerphilly Castle – Radyr Weir loop from Caerphilly

Caerphilly Castle

The Castle Climb

Ogmore-by-Sea Beach

Café Velo

Gwern-Y-Steeple Climb

Stone Gateway

Radyr Weir

Penrhos Cutting Cycle Path

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