A scenic road running event in Caernarfon, Gwynedd, Wales, this half marathon starts and finishes beside the iconic Caernarfon Castle and follows a largely flat, fast route that offers coastal views and country roads. It’s part of the popular North Wales running calendar and attracts both club runners and visitors.

Key Details

Date & Time
Sunday, 6 September 2026 — Start time: 09:30 AM. Registration and race HQ open from 08:00 AM next to the start/finish by the castle.

Location
Caernarfon, Gwynedd, Wales — start/finish beside Caernarfon Castle with parking available in town car parks (well signposted).

Event Type
Road running — Half Marathon (13.1 miles / ~21.1 km) on roads and footpaths.

Organiser
Run Wales / local race organisers via RunWales event listing.

Race Description
The course is mainly flat with a few small rises and long downhill sections and typically runs over two laps, taking runners around the town centre and along coastline, country roads and cycle paths. It offers opportunities for fast times and personal bests, while still being welcoming for less experienced runners.

What’s Included

• Chip-timed results and official race timing.

• Bespoke finisher’s medal and technical t-shirt for participants.

• Drink stations on course as appropriate.

• Event village/runner support at the start/finish area.

Additional Information

• The race is open to runners aged 17 and over (typical for half marathon events).

• Parking is in public town car parks with signs directing toward the castle (avoid trying to park immediately beside the start/finish).

• The event is part of the North Wales running series and often attracts regional competition and club runners.