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Afon Seiont – Caernarfon Castle loop from Caernarfon

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Hiking trails & Routes

Afon Seiont – Caernarfon Castle loop from Caernarfon

Moderate

4.4

(13)

hikers

Afon Seiont – Caernarfon Castle loop from Caernarfon

02:08

8.18km

60m

Hiking

Moderate hike. Good fitness required. Easily-accessible paths. Suitable for all skill levels. The starting point of the route is right next to a parking lot.

Last updated: May 13, 2026

Tips

Temporary access restrictions

Includes segments with temporary access restrictions.

After 976 m for 75 m

Closed: • 11:00 PM-7:00 AM (otherwise open)

Waypoints

Start point

Parking

Get Directions

130 m

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

296 m

The Museum of the Royal Welch Fusiliers

Highlight • Historical Site

555 m

View of the Marina

Highlight • River

571 m

Afon Seiont

Highlight • Other

853 m

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

1.10 km

View of Caernarfon Castle

Highlight • Historical Site

Castell Caernarfon is recognised around the world as one of the greatest buildings of the Middle Ages.

This fortress-palace on the banks of the River Seiont is grouped with Edward I’s other castles at Conwy, Beaumaris and Harlech as a World Heritage Site. But for sheer scale and architectural drama Caernarfon stands alone.

Here Edward and his military architect Master James of St George erected a castle, town walls and a quay all at the same time. This gigantic building project eventually took 47 years and cost a staggering £25,000.

The castle was born out of bitter war with Welsh princes. So of course its immense curtain walls and daunting King’s Gate were designed to withstand assault. But the polygonal towers, eagle statues and multi-coloured masonry sent a more subtle message.

Tip by

2.83 km

Boats at Llanfaglan Shore

Highlight • Natural

There's a little collection of boats here, pulled up from the beach behind with a backdrop of the Menai Strait. It's delightfully peaceful and a lovely place to pause for a snack. There are sometimes boats moored in the shallows as well, lolling around at different states of the tide.

Tip by

8.18 km

End point

Parking

Way Types & Surfaces

Way Types

4.00 km

2.87 km

911 m

295 m

106 m

Surfaces

3.23 km

2.29 km

2.09 km

566 m

Elevation

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

Weather

Saturday 4 July

21°C

15°C

16 %

Additional weather tips

Max wind speed: 20.0 km/h

to get more detailed weather forecasts along your route

Comments

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Afon Seiont – Caernarfon Castle loop from Caernarfon

Palace Street, Caernarfon

The Museum of the Royal Welch Fusiliers

View of the Marina

Afon Seiont

Caernarfon Castle

View of Caernarfon Castle

Boats at Llanfaglan Shore

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