Routes

Planner

Features

Updates

App

Get the App

Routes

Running trails & routes

Caernarfon Castle – Afon Seiont loop from Menai Strait

Routes

Running trails & routes

Caernarfon Castle – Afon Seiont loop from Menai Strait

Moderate

runners

Caernarfon Castle – Afon Seiont loop from Menai Strait

01:32

14.7km

90m

Running

Moderate run. Good fitness required. Mostly paved surfaces. Suitable for all skill levels. The starting point of the route is accessible with public transport.

Last updated: May 18, 2026

Waypoints

Start point

Bus stop

Get Directions

5.96 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 use.

Coming under council ownership in the 90s, the marina was rejuvenated and is now a wonderful place for visiting sailors as well as a pretty feature of Caernarfon itself.

Tip by

6.24 km

St Mary's Church, Caernarfon

Highlight • Religious Site

Beautiful little church integrated into the city wall.

Translated by Google •

Tip by

6.69 km

Caernarfon Castle

Highlight • Castle

A medieval fortress situated on the on the banks of the River Seiont, Caernarfon Castle has protected Caernarfon since the 11th century. The magnificent castle is open to visitors from 9.30am - 5pm (last admission at 4.30pm). Tickets costs £9.90 for adults. You can find out more information about events at the castle here: cadw.gov.wales/daysout/caernarfon-castle/?lang=en

Tip by

6.79 km

Palace Street, Caernarfon

Highlight • Settlement

Palace Street in Caernarfon was awarded the "Welsh Rising Star" award at the Great British High Street Awards 2019! The beautiful street is becoming increasingly popular with independent shops and has attracted additional shoppers in recent years. As a visitor, it is worth a detour to visit one of the many cafes or restaurants, or to browse the local shops.

Translated by Google •

Tip by

6.90 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

7.51 km

Caernarfon Cycle Path Entrance

Highlight • Rest Area

7.97 km

Afon Seiont

Highlight • Other

8.54 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

14.7 km

End point

Bus stop

Way Types & Surfaces

Way Types

13.3 km

876 m

306 m

215 m

Surfaces

11.9 km

2.09 km

643 m

Elevation

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

Weather

Tuesday 21 July

22°C

13°C

0 %

Additional weather tips

Max wind speed: 15.0 km/h

to get more detailed weather forecasts along your route

Comments

Want to know more?

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

Navigate

Send to Phone

Save

Edit route

Download GPX

Move start point

Embed on a website

Report an Issue

Report restricted access

Nearby routes

Hard

5.0

471

Pyg and Miners Track loop on Yr Wyddfa (Snowdon) from Pen-y-Pass — Trail Running in Eryri (Snowdonia)

02:11h

12.2km

680m

Moderate

4.6

505

Llyn Padarn Loop Trail

01:01h

8.54km

120m

Hard

4.8

459

Snowdon Summit loop, Telegraph Valley & the Llanberis Path — Snowdonia National Park

02:55h

18.9km

1,100m

Hard

4.0

263

Moel Eilio loop from Llanberis

01:47h

13.5km

650m

Hard

4.0

180

Carnedd Dafydd & Carnedd Llewelyn loop from the Ogwen Valley

02:50h

19.7km

930m

Hard

5.0

125

Yr Wyddfa (Snowdon) Horseshoe loop from Pen-y-Pass — Trail Running in Eryri (Snowdonia)

02:50h

12.2km

830m

Hard

5.0

122

Rhyd-Ddu and Snowdon Ranger Path loop on Yr Wyddfa (Snowdon) — Trail Running in Eryri (Snowdonia)

02:29h

15.4km

900m

Hard

5.0

109

South Ridge and Watkin Path loop on Yr Wyddfa (Snowdon) — Trail Running in Eryri (Snowdonia)

02:27h

14.0km

980m

Hard

5.0

114

Carnedd Llewelyn & Carnedd Dafydd loop from the Ogwen Valley — Eryri (Snowdonia) National Park

02:16h

14.8km

910m

Hard

5.0

Moel Eilio and Yr Wyddfa (Snowdon) loop from Llanberis — Trail Running in Eryri (Snowdonia)

03:27h

22.1km

1,360m

Hard

5.0

Moel Siabod from Capel Curig trail running loop

01:59h

11.5km

700m

Hard

5.0

Y Garn to Glyder Fach trail running loop — Parc Cenedlaethol Eryri | Snowdonia National Park

02:19h

11.5km

930m

Caernarfon Castle – Afon Seiont loop from Menai Strait

Victoria Dock Marina, Caernarfon

St Mary's Church, Caernarfon

Caernarfon Castle

Palace Street, Caernarfon

Caernarfon Castle

Caernarfon Cycle Path Entrance

Afon Seiont

Caernarfon Harbour

Nearby routes

Sign up or log in to keep exploring this route

We value your privacy ⛰️

We value your privacy ⛰️