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Hengoed Viaduct – Caerphilly Castle loop from Aber

Hengoed Viaduct – Caerphilly Castle loop from Aber

Moderate

riders

Hengoed Viaduct – Caerphilly Castle loop from Aber

03:23

75.5km

720m

Road cycling

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

Last updated: October 16, 2025

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Waypoints

Start point

Train Station

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9.56 km

The Mad Mile (Caerphilly Road)

Highlight (Segment) • Climb

This strip of Caerphilly Road, locally know as the Mad Mile, is a long stretch of straight, smooth road with a fair incline - especially if you’re going in the …

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24.7 km

Coffiology

Highlight • Cafe

Good coffee and cakes!

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30.2 km

Caerleon to Usk Road

Highlight • Trail

37.0 km

Usk Bridge

Highlight • Monument

The old red sandstone bridge was built between 1746 and 1747. It has five arches and was widened in 1836-7, although it might not feel like it when the traffic is busy!

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63.5 km

Sirhowy Valley Bike Path

Highlight (Segment) • Cycleway

This segment of the Sirhowy Valley bike path let’s you avoid the main road through Maesycwmmer. Just watch out for pedestrians if you’re going fast!

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64.5 km

Wheel o' Drams Sculpture

Highlight • Monument

This sculpture blew my train obsessed nephews mind. Good thing to explore with kids.

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64.7 km

Hengoed Viaduct

Highlight • Cycleway

Hengoed Viaduct is an old railway viaduct that’s now a pedestrian walkway and extension of the National Cycle Route. On clear days, the view is pretty over the valley.

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74.2 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.

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75.5 km

End point

Train Station

Way Types & Surfaces

Way Types

47.6 km

23.7 km

1.88 km

1.84 km

358 m

< 100 m

Surfaces

71.8 km

3.67 km

< 100 m

Elevation

Highest point (220 m)

Lowest point (0 m)

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

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Hengoed Viaduct – Caerphilly Castle loop from Aber

The Mad Mile (Caerphilly Road)

Coffiology

Caerleon to Usk Road

Usk Bridge

Sirhowy Valley Bike Path

Wheel o' Drams Sculpture

Hengoed Viaduct

Caerphilly Castle

Nearby routes

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