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Hiking trails & Routes

Vale of Glamorgan

The Knap – Porthkerry Viaduct loop from Cardiff Airport

Hiking trails & Routes

Vale of Glamorgan

The Knap – Porthkerry Viaduct loop from Cardiff Airport

Moderate

4.3

(6)

28

hikers

The Knap – Porthkerry Viaduct loop from Cardiff Airport

04:39

17.2km

230m

Hiking

Moderate hike. Good fitness required. Easily-accessible paths. Suitable for all skill levels. The starting point of the route is accessible with public transport.

Last updated: February 27, 2026

Waypoints

A

Start point

Bus stop

Get Directions

1

10.4 km

The Knap

Highlight • Settlement

I love a duck so stood tall. Lovely area

Tip by

2

10.5 km

View of Knap Gardens Marine Lake

Highlight • Lake

3

10.8 km

Cold Knap Roman Site

Highlight • Historical Site

The monument consists of the remains of a Roman rectangular courtyard building dating to the 2nd or 3rd centuries AD.

It is located close to the beach at Cold Knap …

Tip by

4

12.2 km

Porthkerry Viaduct

Highlight • Historical Site

The marvellous 16-arch Porthkerrry Viaduct stands at a whopping 110 feet (33m) high. It was designed and engineered by James and William Szlumper and was originally built to carry coal …

Tip by

12.7 km

Viaduct Wood

Forest

6

14.9 km

Bench With a View of the Sea

Highlight • Viewpoint

7

15.6 km

Rhoose Point

Highlight • Natural Monument

8

15.7 km

Rhoose Point – Southernmost Point of Mainland Wales

Highlight • Viewpoint

Located near the village of Rhoose in the stunning Vale of Glamorgan, Rhoose Point (Welsh: Trwyn y Rhws) stands as a captivating headland and settlement. Nestled in the southernmost reaches …

Tip by

9

15.9 km

Bench with View of Rhoose Lagoon

Highlight • Lake

Perfect bench for enjoying lunch and looking out over the cliffs

Tip by

B

17.2 km

End point

Bus stop

Way Types & Surfaces

Way Types

4.98 km

4.18 km

3.82 km

2.34 km

1.68 km

162 m

Surfaces

6.33 km

5.29 km

2.75 km

1.68 km

1.12 km

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Elevation

Elevation

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

Highest point (60 m)

Lowest point (0 m)

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Weather

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Saturday 9 May

14°C

8°C

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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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