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Running trails & routes

Caernarfon Harbour – Afon Seiont loop from Caernarfon

Running trails & routes

Caernarfon Harbour – Afon Seiont loop from Caernarfon

Moderate

25

runners

Caernarfon Harbour – Afon Seiont loop from Caernarfon

00:54

8.62km

60m

Running

Moderate run. Good fitness required. Mostly paved surfaces. Suitable for all skill levels. The starting point of the route is right next to a parking lot.

Last updated: August 3, 2026

Waypoints

A

Start point

Parking

1

1.52 km

Caernarfon Cycle Path Entrance

Highlight • Rest Area

2

1.94 km

Caernarfon Castle

Highlight • Monument

Royal fortress-palace built on legends and bitter medieval conflict Caernarfon Castle is recognised around the world as one of the greatest buildings of the middle ages

Tip by

3

2.67 km

St Mary's Church, Caernarfon

Highlight • Religious Site

Beautiful little church integrated into the city wall.

Translated by Google •

Tip by

4

2.73 km

Caernarfon Harbour

Highlight • Structure

Lovely little harbour with lots of boats. You can walk along the sea front and there are bars, pubs and restaurants nearby and around the harbour to visit.

Tip by

5

5.87 km

Victoria Dock Marina, Caernarfon

Highlight • Structure

Caernarfon's Victoria Dock was built in the 1800s to receive timber sailed over from Scandinavia. It wasn't busy for long though, as the arrival of the railway somewhat undermined its …

Tip by

6

6.66 km

Afon Seiont

Highlight • Other

B

8.62 km

End point

Parking

Way Types & Surfaces

Way Types

5.96 km

1.08 km

920 m

401 m

215 m

< 100 m

Surfaces

4.37 km

2.40 km

1.84 km

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Elevation

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

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Weather

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Thursday 8 October

16°C

10°C

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